- Stiff alpine touring boot excels at long tours and big descents
- Aggressive 120 flex drives stiff or wide backcountry touring skis
- Roomy 101mm last balances comfort with performance for the up and down
- 60-degree cuff rotation allows ankle to move naturally while skinning
- Ski/walk mode located on the front of boot for smooth transitions
- Lugged rubber sole clings to snowy bootpacks and windblown ridges
- Dynafit-certified tech inserts fit any pin-style tech binding
- Item #SCO00Q5
- Q & A
Review 1, Initial Observations
The rating may change.
Uncorrected Foot Dimensions
Length 28 centimeters
Instep 26 centimeters
Heel 36 centimeters
Ball 111 millimeters
Areas most skied; Little and Big Cottonwood Canyons, Mill Creek
Skis and Bindings
K2 Annex 108, 170cm and 177cm, Vipec, Vipec Evo
Elan Ripstick 106, 174 cm , Tecton
Fischer TransAlp 88, 177cm, G3 Ion Lt
Last year I purchased a pair of Cosmos III boots 28.5 at (316 mm) for out of bounds skiing and liked them so much I wound up using them in bounds quite often with my touring gear. Looking for a little stiffer flex boot for in bounds, side country and to mate to a narrower "walking around" ski, I considered the S1 Carbon and Carbon Longfiber models. Both models in Size 28.5 (316cm) were tried on and it was determined the shell was too large. A shell size 27.5 (306) was tried and it surprised me that a boot 10 cm shorter was spot on, considering my cosmos are 28.5 (316cm). Once the proper size was on my feet, I found the Carbon too stiff in both ski and tour modes.
Longfiber vs Cosmos III
The Longfiber is quite comfortable and fits a little closer around the foot than the Cosmos. That in mind, the Longfiber liner has not been cooked and the shell is 10 cm shorter than the Cosmos III. 306cm vs 316cm.
The Longfiber buckle fiddle factor is considerably higher when transitioning between ski and tour modes than the Cosmos III. I expect that to be less of an issue as time goes on.
Longfiber cuff range of motion appears to be more than adequate and feels "easier" in tour mode than the Cosmos III.
The Liner feels a little denser than the Cosmos III liner.
Did Scott design a new last for this model?