PSA – Garmont Radium Boots – fit change

Post by blogger | April 7, 2011      

Shop for Garmont ski boots here.

Backcountry skiing boot reviews.

Boot Reviews

I have been using Garmont Radiums since they came out, and still love them. While they aren’t the stiffest boots out there, they are still fairly beefy. They have a really nice flex that is hard to find in an AT boot, and tour great as well. These days I use other boots in my quiver for big tours and ski mountaineering, and the Radiums for driving big skis or on days when I don’t mind a bit of extra weight and want to have fun skiing in a no-compromise alpine style.

Radiums, Dynafits and Megawatts, good combo!

Several years ago I tried the 27.5 Radium (my normal AT boot size), but it was quickly apparent that they would be too small. The toe area of the Radiums tapered sharply in, and the end was quite small, making for a strange fit. I ended up going with size 28, a shell size bigger. The size 28 worked fine, except for the fact that they had a sole length of 325mm, while most other boots I’ve owned have been around 310mm. For example, my current favorite lighter weight touring boots are 308mm. This was quite a hassle when switching between boots. The longer sole length also made for a slightly less efficient stride — very noticeable when walking without skis, but with skis on as well.

Apparently quite a few people didn’t like the fit of the Radium, so Garmont decided to change it. I was excited to try on a new pair of 27.5s. I got a pair, and voila, they fit! They widened and increased the height of the toe box, which makes for a much more comfy fit. The sole length of the 27.5 is 315, which makes switching between them and my other boots much easier, and makes for a little more efficient stride. Unfortunately Garmont didn’t change anything about look of boots with the new sizing, so do a little research on which ones you are buying before swiping the card.

The liner for the old Radium is on top, new is on bottom. The difference is slight, but the new liner is slightly less pointy, giving more room for the toes.

Difference in length between the old shells (bottom) and new.
Shop for Garmont ski boots here.


Please Enjoy A Few Suggested WildSnow Posts


61 Responses to “PSA – Garmont Radium Boots – fit change”

  1. Zeb April 7th, 2011 10:41 am

    SInce you’re talking boots, I wonder if you have an opinion on my Garmount Mega-Rides. They seem to be on the light, soft side of the spectrum. But since they’re all I’ve ever used, I can’t say for sure. I’ve also come to believe that light and soft just forces you to do better keeping your balance point; in other words, I can blame myself — not the boots — for any problems. What say you?

  2. Lou April 7th, 2011 11:03 am

    Zeb, I was just speaking with a ski pro 5 minutes ago about how the more modern style of skiing can require less boot leverage… What that means is all this depends on your style of skiing. One skier could find the Mega-Ride to be a beautiful solution (I always liked it, for example), while another might find it too weak. As for being “forced” to maintain balance point, if you feel that’s going on you are missing the point. Skiing should feel relaxed and fun, not be an effort to fight a boot or lack of balance. Sounds like it would be a good idea for you to either work on changing your style to more skeletal and relaxed, or else use gear that provides the leverage you’re seeking. (For example, the faster and more aggressive you are, the meaning of “soft” and “beefy” changes. Louie skis a lot faster and more aggressive than I do, so a boot that’s too big and stiff to me might feel just right for him.)

    Another thing, big difference from focusing on human power as opposed to mixing in lots of high-speed resort laps. Feet have muscles, and they work great for a thousand vertical in softer boots, but when the foot muscles tire out you can end up needing more boot if your boots are fairly soft.

    One caveat with all t his: No matter what style of skiing, if you’re aggressive, fast, and take air on ocasion you do need a boot that protects your ankles from compression injury. Such a boot doesn’t have to be particularly stiff, but at a certain point in forward flex you don’t want it radically collapsing.

  3. Tuck April 7th, 2011 11:13 am

    I recently got a pair of the orange-toed Radiums. The better fit in the toe is what sold me on them; I was not aware that they’d redone the fit.

    The better fit in the toe, and the stiffer boot has caused me to retire my Megarides.

  4. Lou April 7th, 2011 11:20 am

    Tuck, good feedback, thanks!

  5. Nick April 7th, 2011 11:26 am

    Do the new Radiums still use the same outsourced liner? IMO – that was the biggest problem. The stiching was non-stretch to the point that after baking and blowing out, the toe-box in the liner would gradually re-form to a tighter shape. Also, one of the other issues I encounterd with the older Radiums was the stride – the re-ward cuff motion was virtually non-existent.

    Changed to Dynafit boots and never looked back. But to each his own – glad they work for you!

  6. Lou April 7th, 2011 12:16 pm

    Nick, the Dynafit liners are “outsourced” as well… whatever, the Radium liner toe box is re-designed which is probably part of the reason the newer lasting works better. Don’t know about the cuff motion range.

    Pray tell, which Dynafit boots did you switch to? Mini review as a comment?

    Thanks, Lou

  7. dale persing April 7th, 2011 12:18 pm

    I thought I was crazy when I couldn’t get Radiums to fit my forefoot, even with repeated molding, but identical sized Heliums fit like a glove out of the box.

    Finally heard from IME staff (N. Conway) about the last/shell difference. Whew. Not crazy. And the lighter boots work for me better anyway. Win-win.


  8. Justin April 7th, 2011 12:37 pm

    I talked to someone at Garmont about this in the early winter, according to them, only the liner has changed, not the shell. Is that what you guys have heard as well? The shell fit on the Radiums was a big departure from the Mega Rides (higher volume in the instep, ankle, heel).

  9. Eric April 7th, 2011 2:52 pm

    Easiest way to tell generations of the Radium apart is to look at the metal bar for the ski walk mechanism. ’10-’11 vintage has a goldish / brassy hue, while previous generations have a straight grey metal.

    My recollection of differences:
    -Different Liner as noted
    -Slightly wider shell in ball of foot & sixth toe area
    -Degree or two more forward lean

    Edit re anti-spam: We can’t ski on pow?

  10. Steve April 7th, 2011 4:20 pm

    I’ll echo Justin’s comment/question RE: Liner or Shell change? I have an older Radium and the toe box has always cramped my forefoot both width wise (especially) and height wise (not a huge deal). If it is just the liner, I’ll be swapping out ASAP. If it is the shell, I shall kick myself for not waiting another year.

  11. Pierce Oz April 7th, 2011 4:55 pm

    I’ll bite. I just picked up a pair of Dynafit ZZeus boots after coming off two seasons on the old-style Radiums. Before that were the Garmont Endorphins, and before that the Denali TTs, each being used for a couple of 70+ days seasons. My boots have always done double-duty lift-served and touring, and I come in at a dainty 210lbs, 6’1″.

    My take is that any of the last three boots have been a HUGE improvement over the TTs. Looking back at my original set-up of 189cm Seth Pistols, naxo01s, and TTs, I have to laugh a little, but you go with what’s available at the time, right?!? I never got the fit right on the endorphins, and have repeatedly blown out cuff rivets on them, as have several of my friends. A design flaw, I believe, and something to keep an eye on for all Endorphin/Adrenaline/Axiom owners.

    The Radiums seem to be about the same stiffness as the Endorphins, though the flex on them was incredibly smoother. The flex on the Endorphins felt like it was on or off, no in between. They worked fine until I went to dynafit bindings (yay!).

    The much better walk mode, reduced weight, and overlap design of the Radiums was a big improvement as a dual-use boot over the Endorphins, which have pretty much stayed in the closet since. After the first season, I was having fit problems, especially in the noted tight toe area, and with a loose heel. I went to intuition liners, which helped for another season, but by the beginning of this season, I was adding foam around the heel, trying to punch out the toes, hitting them, yelling at them, etc..

    On to the Zzeuss boots, which I bought in late Feb on sale. They felt the best right out of the box of any AT boot I’ve tried, and while I’m needing to do some work on some pinch points on the tops of my feet, they are still feeling great after 15+ days of mixed boot-hiking, resort days, and touring. The heel retention is like a dog on a bone, and the toe box has plenty of room for cold days. They are noticeably heavier than my radiums, no surprise, but the walk mode is quite good especially with top buckles and strap undone. Oh, and the downhill ride is a DREAM. They are considerably stiffer than any of my other boots, though still with a nice progressive flex and not forcing me over my tips on powder days. In fact, while stiff, they have a pretty neutral forward lean that allows for a variety of stances, including too far in the back seat ;>). From what I understand, the TTitans are built on the same last, only pricier and stiffer. So far, this boot is looking to be the perfect resort / slackcountry / shorter day boot, though I am still using the radiums for bigger days touring.

    Downsides to the ZZeus as far as I can tell:

    *Walk mode seems to catch a little sometimes front to back. I haven’t quite figured out if it’s something I’m doing with the buckles, or a mechanical issue with the mechanism.

    *Stock liners are OK. Intuitions are definitely better, and may be a future mod. Some of th stitching on the tongue is already coming apart.

    *There are ridges in the shell on either side of the tongue on the lower part of the boot. I’m working through this now, but sometime I can feel them digging into the tops of my feet and popping tendons around.


    PS – Eric, you ski IN powder and ON snow. 😀

  12. Lou April 7th, 2011 5:42 pm

    Pierce, NICE!

  13. Max April 7th, 2011 7:42 pm

    Sorry for something totally unrelated (but I figured this might be a good place to ask because this might affect a lot of people here), if the government shuts down tomorrow, does that mean we can’t access National Forest land? As in, we won’t be able to go skiing in the b/c in the white river national forest area? Any thoughts?

    (again, sorry for the complete hijack of this post…delete this if it’s totally off…)

  14. Paul Parker April 7th, 2011 8:02 pm


    To clarify, the Radium change for fall 2010, was BOTH a significant shell/mold change and a liner/last change.
    And, another brief note: our liners are not outsourced to Palau. The liners have a Palau label because we license a Palau design patent.
    Thank you for your interest in these boots.

    Paul Parker
    Garmont Product Manager

  15. Lou April 7th, 2011 8:30 pm

    Last time the gov “shut down” it had nothing to do with USFS Forest Service land access. Don’t worry about it. Shoot, it might even be nice not to have rangers harassing you for your snowmobile registration papers and stuff like that….

  16. Tim April 7th, 2011 11:29 pm

    Funny how boot fitting works, these boots fit me in my regular size right out of the box better than any pair of boots I have had professionally fit. No cooking, no punching, if its not broken don’t fix it right…

  17. OMR April 8th, 2011 1:23 am

    I have the orange-toe Radiums and my only complaint is no rearward flex when on the flats. A frequent destination requires 2 miles of low angle approach (10 degress) and I feel like I’m tip-toeing the full 2 miles. And I suffer “calf-bang” (if there is such a thing). Same story on the ski out. But as soon as the angle steepens the discomfort disappears. The problem stems from latching the upper buckels. The solution is to NOT use the upper buckles in any way while on the flats. Even if fully open, but engaged in the loosest knotch, or even just using the power strap, the walk mode is compromised. The upside is they ski great and hike great when the angle is right.

  18. Lou April 8th, 2011 6:42 am

    Tim, your point is one we always make, i.e., fit is nearly everything, work with fit first when buying boots. I’d add that if you don’t understand ski boot fitting, it’s useful to work with a professional whether you need modifications or not, as most people who don’t know boot fitting will end up with a boot that’s too large and sloppy because it “feels good” the first time they put it on.

  19. Lou April 8th, 2011 6:45 am

    OMR, I’ve never owned a pair of AT boots that I didn’t totally unlatch the upper buckles on for hiking. It’s pretty normal to do so… Also, if you can make a boot hike well by simply re-configuring how the buckles are latched, that’s a pretty good thing…

  20. Lou April 8th, 2011 6:46 am

    Paul, perhaps define “outsourced,” I wasn’t aware Garmont had a factory…

  21. Paul Parker April 8th, 2011 7:03 am

    Normally outsourcing is when a third party manufactures something for your brand. It’s quite standard as each manufacturer can focus on their type of product and technology. In the case of Palau, they make liners for a variety of boot brands. We used to use Palau for our liner manufacturing, but several years ago helped set up a factory that makes our liners so that we can have more control over the product.

  22. Graham April 8th, 2011 8:39 am

    It’s a little difficult to make out in pictures, but for you guys that have played with the new model Radium, has there been a change to the toe tech inserts? There looks to be a bit more material in the picture, is there also a Dynafit style “bump” to help with stepping in?
    (another anti spam comment, currently here in European Alps, the answer is rocks, grass, mud and branches…)

  23. Omr April 8th, 2011 8:43 am

    A wee bit of upper buckle resistance is needed to avoid heel-lift and, on the Radiums, rearward flex is compromised even when loosely latched (vs. complete lockdown). On The Scarpas I’ve owned this problem was not so pronounced. I love the Radiums, just not on the flats, where I feel like Tiny Tim..

  24. Lou April 8th, 2011 8:53 am

    Graham, never ever admit your snow is nothing less than perfect powder.

    Louie, tech inserts any different on those new Radiums?

    Ok Omr, point taken.

    Paul, thanks for clarification. We do try to avoid the B-to-B type discussion here, but once in a while the inner workings have some interest in a general sense. Regarding liners, I personally don’t give a rip who makes them or where they’re made, so long as they work!

  25. Scott April 8th, 2011 10:10 am

    I like my Radiums (old style). They ski really well; way better than the Dynamites I replaced. Almost as well as my regular Alpine setup. The toe width is working for me, but the height makes my toes a little cold at times. Maybe I should try the new shell.

    I must be getting weak, though, because they are starting to feel heavy at times and I’m thinking I need a second, lighter setup. The TLT5P and some Manaslus would save me ~5.5 lbs over Radiums and BD Verdicts. Methinks that would be noticable.

  26. Nick April 8th, 2011 11:12 am

    Lou – first, sorry I shouldn’t have said “outsourced” in my original note about the old Garmont Radium liners. I couldn’t care less who makes them (Garmont or Palau) – just if they work. My point was more that the stiching in the toe box didn’t stretch and seemed to re-form post molding. The re-ward cuff travel was lacking IMHO. Prior to Radiums, I used to ski Megarides and also Endorphins – which both fit my foot well. I put a lot of effort into the Radiums, including shell work, but couldn’t get them to be desirable.

    To answer your question, I switched to the Dynafit Titans and love them. I run the stock TX liner when skiing inbounds (and use the AT soles in Dukes) and switch to a Intuition Pro Tour when touring (skiing on Dynafit STs on either Stokes and now Mustagh AT SLs). I found that much of the *heft* in the Titans comes from the stock liners – so by going to the Intuition Pro Tour, I was able to drop the total weight of a 28.5 Titan to essentially the same as my old stock 28.5 Radium.

    I prefer somewhat of a beefer boof, hence the step-up in heft to the Titan. I just wanted to try and use a single-boot quiver this year for in-bounds and touring. And my touring, I include both day trips and big multi-day tours (e.g., 5-day Sierra High Route crossing of the entire range). I feel able to make up the weight in other categories (light skis, bindings, pack, etc…).

    As far as touring, I think the stride on the Titan is much better than the Radium. It has a more natural stride and much more rearward cuff travel. And IMO it skis much better (but that is really apples to oranges as they are designed as different boots).

    Would love to get into some of the new TLT Performance boots if I go back to the dual quiver, although I found the foot pretty narrow on those compared to the Titan shell and would likely have to do some work on them.

  27. Lou April 9th, 2011 8:03 am

    Nick, thanks, that’s the kind of comment that makes WildSnow special! Really helpful for people. Running a one-boot quiver is terrific, and actually mandatory for some folks, so different ways of accomplishing that are always good to hear. Using a couple of different liners is a great solution, as yes, the liner is such a huge part of how a boot skis, weight, comfort, warmth…

  28. Ben C April 9th, 2011 11:22 pm

    Very timely post as i was just considering mods to my radiums.

    I have a pair of 09-10 radiums. The first season (confess, not a whole lot of days of skiing) they took a big toenail off my foot. the second season i remolded more aggressively and the toes are fine now. but the heel pocket, which i had to build up to keep my heel down in, still shreds my feet when I tour- last season and this.

    Seeing many posts about intuition liners, I thought I’d give it a whirl. After telling my life story to Intuition (much like this comment), Intuition emailed back that I should get a size 30 liner for my size 29.0 /29.5 (335mm BSL) Radiums.I’m 95% sure I had a 29.0 liner.

    Does that size 30 recommendation make sense? I have a size 12 foot across the board except running shoes- 13 to prevent toebang. I have about 1.5cm visible on the sticker thing on the bottom of the boot with barefeet.

    Many thanks.

  29. Chris April 10th, 2011 8:53 am

    Ben: I had the same size Radiums, but they were from the first year. I have a very narrow and low volume foot, so I purchased a size 30 Intuition Luxury Liner with the high volume (thickest) foam. These succeeded in taking a lot of volume, especially in the ankle area. You’ll likely have to do some work in the toe area so that your toes have room, but this is doable. I spot molded mine using a hot bag of rice stuffed in the toe. It took a few goes, but eventually I got enough room there. I didn’t mold the rest of the liner because I find that it compresses the foam, and after wearing them for a while they mold to your feet anyhow. But I ALWAYS struggle with too much volume, so this approach works for me.

    My foot sounds similar in length to yours, mine might be a hair longer. Eventually I gave up on this boot because I couldn’t get rid of the toe bang (perhaps due to the first season version of this boot) and generally weird fit. I also find the tour mode very restrictive for the flat approaches I often do.

    I replaced these with Titans in the same shell size which fit me MUCH better. Plenty of toe room and length, but narrower and lower volume everywhere else. As another poster mentioned previously, I use the same intuition liners in these which drops the weight considerably over the stock liner. Still, these weigh about 4oz more per boot than my Radiums did with the same liner. The tour mode is day and night better than the Radiums (and the fit) so I found it worth the extra weight.

    I still ended up getting a pair of TLT5’s and now have 3 days on them. Can’t see going back to the Titans anytime soon…but now I’m off topic.

  30. JQ April 10th, 2011 2:07 pm

    I replaced a well worn and softening pair of Megarides with the BD Quadrant. I felt the toe of the Radium was just too narrow and like Louie did not want to go up a shell size. I’m writing because the Quadrant has by far the most ankle motion in walk mode of any boot I’ve owned or tried on. The ‘click open’ feature of the top buckles is part of the deal. Lou- I now do not unbuckle my top buckle to go up. 1) release the back lever and 2) lock open the second buckle and it’s like hush puppies.

  31. Lou April 10th, 2011 3:50 pm

    JQ, thanks, BD’s boots need more coverage here. I’ll see what I can do about that, but the comments help as I don’t have 8 legs and neither do most of the guys and girls helping out around here.

  32. Lou April 10th, 2011 4:01 pm

    Ben, give the 30 liner a go, mainly, it is longer.

  33. Louie April 10th, 2011 8:57 pm

    Sorry for the late reply, I’ve been busy skiing at a hut for the past few days :).

    The Dynafit inserts in the new vs. old Radiums don’t look much different, and they don’t have a “quick step in” bump. As for the Radium walk mode, they have less range of motion than some more touring oriented boots, but it it works well for me. I unclip all the buckles, and let my heel move up and down a bit. Most stock moldable liners are pretty good nowadays, but I agree that intuitions are the best, they last the longest and pack out the least.

  34. Ben C April 10th, 2011 10:04 pm

    Thanks Lou and Chris. I’ll try the size 30. I was thinking freeride based on the product description but may take a look at the luxury now that you mention it.

    Also- any links to spoilers? I’m also in the not-enough-forward-lean-camp. I might redrill the lock bars too if i can get another set from garmont.

  35. Dave M April 12th, 2011 4:59 pm

    Hey Lou,

    I’ve got a pair too, and like them, and for super fast and light, I’ve got some F1races. Since you mentioned your quiver, I’m curious about what you have that falls in between — something that can make a good turn, drive a reasonable ski, but still not feel leaden when you’re heading out for longer tours.



  36. Lou April 12th, 2011 5:23 pm

    Easy, for me that would be a Dynafit Green Machine, but plenty of other options exist.

  37. Louie April 12th, 2011 6:41 pm

    I’m using the Maestrale as my lighter boot. It skis well, but can’t drive a ski like the megawatt in anything but powder very well. Now if only Scarpa would make a stiff Maestrale toungue…

  38. Justin April 13th, 2011 8:06 am

    Louie – I also have some Maestrales. I do wish they were stiffer, but you might be surprised how much better they ski with a wrap style liner in them. I was initially very impressed with how well they tour with the standard liner, but didn’t like the way they skied. I put a Scarpa wrap liner in them, and they ski MUCH better, but of course don’t tour quite as well, but still well enough for me. But since I am a huge gear geek I am of course looking forward to checking out the new Green Machines and Titan Ultralights next year….

  39. Mattias April 14th, 2011 2:31 am

    I believe that the liners with the orange toe could be the same as in the Prophet NTN boots, which I have used when teleing the last two seasons. The fit is great but the liners are really cold, the orange part is thinner than the rest of the liner and my toes feel like ice even on moderately cold days. This is of course less of a problem when I´m touring. With other boots and liners, Dynafit or Intuition or the the old Scarpa liners I have not experienced cold feet as a particular problem.

  40. nah May 18th, 2011 1:32 am

    Garmont did not alter the shape of the footbox i.e. the plastic boot is unchanged. They simply put a thinner-toe liner into the same shell. You think they’re going to change an entire line of molds and lasts and not revamp the line itself? uh, no. lol.

  41. Louie May 18th, 2011 2:23 am

    It is interesting that they didn’t change the design of the boot at all, but they did in fact change the mold to accommodate a different last.

    As Paul Parker said in an earlier comment:

    “To clarify, the Radium change for fall 2010, was BOTH a significant shell/mold change and a liner/last change.”

  42. Lou May 18th, 2011 4:48 am

    Louie, yeah, many of these companies like nothing better than to fix what works, hence the endless march of new boot models that are essentially the same as older ones, only with different graphics and colors. Radium seems to work really well for many people, so simply fixing the weird lasting in the toe, but leaving the rest the same, was a good move by Garmont though they might have been wise to change the color so as to at least get a bit more of a “new” feeling out there for potential customers.

  43. SB May 20th, 2011 10:56 am

    I just had a surprise yesterday when I weighed my size 25.5 Radiums and old Dynamites (yes, I know these stink). The dynamites were 3lb,6oz and the Radiums were 3lb,10oz per boot. I had been touring around on the Dynamites thinking they were much lighter.

  44. Paul L. June 30th, 2011 8:58 pm

    Thanks for allowing me to re-up this thread. Was reading through it looking for some info on liners. Have been in a silver Endorphin w/ the G-Fit 3 Liner for few years. Loved the boots and beat the crap outta them for 4+ years. Baked them 3 times overall. Just picked up the newer Endorphins with the Rapid Thermo liner and orange toe-box. Am happy to hear of the changes regarding fit. Sounds like to toe-box area will be more accommodating for my 6th toe width and length. Would anyone know about baking the newer orange liners. In other words, will they bake the same as the G-Fit 3, or is there a new procedure for cooking them?

  45. Paul Parker July 1st, 2011 6:40 am

    Hi Paul,
    Glad you like the Endorphins. Great boots. The cooking procedure for the Rapid liner is the same as the G-fit 3: @15 minutes at 120C (248F) in a convection oven. 10 minutes is usually adequate if it’s not too close-fitting a shell.
    Enjoy your boots!
    Paul Parker

  46. Paul L. July 3rd, 2011 2:57 pm

    Thanks, Paul, for the info. Just what I was looking for. Have spread that info to Time4tux where I typically lurk. Will continue to enjoy those Endorphins!

  47. Wesley wright November 23rd, 2011 8:00 pm

    Skied 2 years in gfits, 3 years in andrenalines, averaging 80 days per year. Andrenalines beat to death, looking for replacement . Been in a 28.5 . Had tried on various sizes of maestral, bd prime, bd factor, technical, salomon . No luck. Now trying to find 2012 radium in northern vermont in 28.5, coming up empty. Hoping it will work with my wide forefoot and narrow heel. I am so tired and frustrated with trying on boots. I’m starting to think want I want in another pair of andenallines.

  48. Lou November 23rd, 2011 10:10 pm

    Wes, there is indeed something to the concept of “why fix what works?”

  49. Paul Parker November 24th, 2011 6:22 am

    Wes, Have you tried contacting Garmont NA in Burlington? Its sounds like a new Radium might work well for you. I would think that they have something in inventory that you can try on.
    Paul P.

  50. Wesley wright November 24th, 2011 8:03 am

    I wasn’t sure how much of a presence Garmont still had in Williston. I emailed them last night.

  51. Jeff P. December 12th, 2011 6:19 pm

    Lou, will I be able to use the 2011/2012 Radiums safely with Marker Baron bindings?

  52. Lou December 12th, 2011 6:35 pm

    So long as there is something substantial left of the soles, they’ll work in AT bindings such as Baron provided the binding is correctly adjusted.

  53. Rory January 17th, 2012 2:54 pm


    Apologies if this is off topic, but after following the instructions in the “Contact” page, this seemed the most releveant page to post on.

    I have a pair of Radiums that have served me well over the last three winters. I switched to Dynafit bindings last winter and consistently found it more difficult to click into the bindings with my left boot. The left ski also released when I didn’t want it to a few times, which was annoying.

    Last winter I didn’t manage to get to the bottom of why this was happening, but I’ve just looked at both boots and have realised that the toe of my left boots sits a lot lower than the right boot. So much so that the lugs at the the toe on the left boot – the one with the problem – are 3mm lower than the lugs on the right boot.

    Looking at the soles, and measuring the depth of tread remaining on each boot’s sole with a tyre tread depth guage there’s no difference. However, looking at the profile of each boot as they stand on the ground, the left boot doesn’t curve up at the toe nearly as much as the right one. I can only guess that the way I walk has caused this. My biomechanics haven’t been very symmetrical for the last ten years since I smashed my right ankle and I’ve always placed a lot more weight on my left side when I walk: all my shoes tell that story.

    Anyway, my main question is:

    > has anyone else experienced similar problems with the height of a tech insert-fitted boot’s toe lugs off the ground affecting the compatibility with a Dynafit binding and have any solutions?

    I was just going to build up a layer of duck tape on the appropriate area of the left ski to raise the left boot’s lugs up the 3mm i need to match the height of the lugs on the right boot.

    If anyone has any advice or suggestions they could give, that would ge great.

    Thanks in advace….

  54. Lou January 17th, 2012 7:34 pm

    There is a post somewhere about a solution for this, where I glued a dab of JBweld epoxy to the “trigger zone” of the toe wings, to compensate for boot wear. At least one other brand of tech binding actually has a small setscrew that can be adjusted in this area to take up space. And yes, one solution is a tiny pad of duct tape on the trigger zone.

    HA, I found it, here is the post:

  55. Rory January 18th, 2012 2:35 pm

    Hi Lou,

    Thanks very much for getting back to me so quickly. It’s a shame I can’t attach a picture, because the sole wear isn’t the problem: it’s actually the shape of the sole. I’ve taken some photos that show exactly how the toe of one boot sits 3mm lower than the toe of the other.

    I’m going to get in touch with Garmont to see what they have to say as I’ve had some feedback from my post in that someone else has had a similar problem to mine and had a replacement supplied by the manufacturer. That manufacturer wasn’t Garmont though.

    Thanks again,


  56. Paul Parker January 18th, 2012 4:08 pm

    Hi Rory, When I saw Lou’s post yesterday evening I thought that you had the issue resolved, that it was the sole thickness. Certainly contact Garmont and we’ll get it resolved. Do you have the photos posted anywhere that I could see them?

  57. Rory January 19th, 2012 1:28 am

    Hi Paul,

    That would be great if you could help. I don’t have the photos posted anywhere but I could e-mail them to you. My e-mail address is if you want to send me an e-mail address that I could send the pictures to.



  58. Mac June 9th, 2013 4:26 pm

    Hi All,

    Last (southern hemisphere) season I bought a pair of 2011-12 Garmont Radiums. Both my previous alpine and AT boots were very a comfortable 26.5, so I went with the same size in the Radiums.

    Despite much fiddling with the liner etc, they proved to be too short resulting in much mushed up toes while skinning etc – but otherwise an excellent fit. The shop did the rightie by me and swapped them for a 27.5. This solved the toe problem – but it became apparent after a couple of days skiing that the fit around the rest of the foot was too roomy, and that the sole length was uncomfortably long for efficent skinning/boot packing etc.

    The 26.5 shell seemed to have more than enough room – so does anyone know if I could solve the problem of toe room issue by swapping out the stock liners with an Intuition liner?



  59. Erik Erikson June 10th, 2013 2:48 am

    Hi Mac,
    why don´t you have the toe area punched out in the 26,5? In the USA it seems to be quite common to do so if necessary (not so much in the alps, don´t know where you are from)

  60. Lou Dawson June 10th, 2013 10:18 am

    I doubt a liner swap will give you the excellent ankle fit that the correct size shell had. Indeed, your 26.5 sounds right. So go to a boot fitter and get the correct mods done on a 26.5, including a shell toe length punch.

    And, if you already made the mistake of upsizing your shells and can’t go back, sure, you can try stuffing extra material around your ankle to try and get a fit. A thicker liner might do that. But if I was a boot fitter and knew that you’d enjoyed the ankle area fit of the smaller shell, I’d be pretty reluctant to go throwing money at what sounds like the wrong shell.

    BTW, with the 26.5 be sure it’s not just a simple matter of lengthening the liner toe area, something a boot fitter can do in their sleep.


  61. Mac June 10th, 2013 3:39 pm


    Thanks for your replies.

    I thought as much, it seems the boot fitter I was working with wasn’t really up to much! I’ll try and see it I can swap my 27.5 back for the 26.5s. – seeming that I’ve now found a guy at a different store who actually knows what he’s doing!


  Your Comments

  Recent Posts

Facebook Twitter Email Instagram Youtube

WildSnow Twitter Feed


  • Blogroll & Links

  • Welcome to Louis (Lou) Dawson's backcountry skiing information & opinion website. Lou's passion for the past 50 years has been alpinism, climbing, mountaineering and skiing -- along with all manner of outdoor recreation. He has authored numerous books and articles about ski touring and is well known as the first person to ski down all 54 of Colorado's 14,000-foot peaks, otherwise known as the Fourteeners! Books and free ski touring news and information here.

    All material on this website is copyrighted, the name WildSnow is trademarked, permission required for reproduction (electronic or otherwise) and display on other websites. PLEASE SEE OUR COPYRIGHT and TRADEMARK INFORMATION.

    We include "affiliate sales" links with most of our blog posts. This means we receive a percentage of a sale if you click over from our site (at no cost to you). None of our affiliate commission links are direct relationships with specific gear companies or shopping carts, instead we remain removed by using a third party who manages all our affiliate sales and relationships. We also sell display "banner" advertising, in this case our relationships are closer to the companies who advertise, but our display advertising income is carefully separated financially and editorially from our blog content, over which we always maintain 100% editorial control -- we make this clear during every advertising deal we work out. Please also notice we do the occasional "sponsored" post, these are under similar financial arrangements as our banner advertising, only the banner or other type of reference to a company are included in the blog post, simply to show they provided financial support to and provide them with advertising in return. Unlike most other "sponsored content" you find on the internet, our sponsored posts are entirely under our editorial control and created by WildSnow specific writers.See our full disclosures here.

    Backcountry skiing is dangerous. You may be killed or severely injured if you do any form of ski mountaineering, skimo randonnee and randonnée skiing. The information and news on this website is intended only as general information. Due to human error and passing time, the information, text and images contained within this website may be inaccurate, false, or out-of-date. By using, reading or viewing the information provided on this website, you agree to absolve the owners of Wild Snow as well as content contributors of any liability for injuries or losses incurred while using such information. Furthermore, you agree to use any of this website's information, maps, photos, or binding mounting instructions templates at your own risk, and waive Wild Snow owners and contributors of liability for use of said items for ski touring or any other use.

    Switch To Mobile Version