Iser Ski Touring Binding 1970s

This is one of our favorite collection pieces. The Iser was quite prevalent in the 1970s era. While heavy at a whooping 32 ounces a pair, the binding’s simple engineering was appealing.

Iser alpine touring binding in uphill mode.

Iser alpine touring binding in uphill mode.

Vertical heel release is provided by the classic Marker heel unit seen on so many touring bindings of this era. Unlike other rigid plate/frame designs, the Iser uses a flexible plastic plate to connect toe and heel. Heel latchdown is accomplished by bending the plate upwards and inserting a tab in a catch (see photo below), an ingenious way of solving a sometimes complex engineering problem.

Heel latchdown is done by bending the plastic plate up in the middle, thus allowing a tab on the rear of the binding to slip under a catch.

Heel latchdown is done by bending the plastic plate up in the middle, thus allowing a tab on the rear of the binding to slip under a catch.

Rear area of plastic plate included a molded logo, as well as a sticker showing how to convert the binding between 'tour' and 'piste.'

Rear area of plastic plate included a molded logo, as well as a sticker showing how to convert the binding between ‘tour’ and ‘piste.’

Toe unit details

Toe unit details.

Toe height adjustment is easily done by rotating the vertical threaded rods with a screw driver. Lateral release is a cam and spring system similar to most other release binding of this era, with tension adjusted by rotating the red cap with the crossed slots. What’s interesting about the toe release is that the springs are oriented totally perpendicular to the for/aft axis of the binding, thus eliminating bulk on the front of the toe unit that would obstruct movement of the binding in touring mode. This problem of providing release but not obstructing movement is an engineering dilemma common to most randonnee bindings and has been solved in numerous ways.

This is another model of the binding, probably later. The heel latch worked by sliding for and aft, controled by the rotating dial on the right. Photo thanks to Raul Tapia.

This is another model of the binding, probably later. The heel latch worked by sliding fore and aft, controlled by the rotating dial on the right. Photo thanks to Raul Tapia.

Thanks goes to Frank Mattheus for his kind donation of these bindings to the collection.

Iser binding thumbnail.

Iser binding thumbnail.


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  • 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.

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