Visually, Dynafit TLT 5 appears wider at metatarsal than TLT6. Some of that might be illusion, or the result of thicker plastic for the metatarsal flex zone of the TLT5. Still, during recent fitting projects I’m finding the TLT6 seems the same or even slightly narrower in the metatarsal, even though I _thought_ someone said it was wider. Time for comparo. I have TLT5 28.5 shells sitting here, Cripple Creek Backountry has TLT6 in the same size, so I headed over there and did some measuring.