Free 2-Day Shipping on Orders Over $50

Detail Images

  • Scott - Liner
  • Scott - 3/4 Front
  • Scott - S1 Carbon Longfiber Boot - White/Red
  • Scott - Liner -
  • Scott - 3/4 Front -

Current Color

  • Scott - S1 Carbon Longfiber Boot - White/Red

Scott S1 Carbon Longfiber Boot


Free 2-Day shipping on orders over $50. Learn More

Select a Size:

Select options
  • Select options
    • 25.5
    • 26.5
    • 27.5
    • 28.5

    Select a Color:

    Select options
  • Select options
    • White/Red

    1 Review


    Another, please.

    One-and-done tours have never been your forte. Whether you're venturing into the alpine when conditions are clear or lapping low-angle pow below treeline on a storm day, you require a boot that will keep you moving quickly up the mountain and having a blast all the way back down—the Scott S1 Carbon Longfiber Alpine Touring Boot. Keeping the boot light during long tours and seemingly endless switchbacks, the S1's shell is composed of a Grilamid material that is able to maintain the stiff, responsive feel of an alpine boot while requiring less material than a traditional polyurethane shell. To reduce weight even more, Scott added its Carbon Longfiber material to the tongue and frame to maintain rigidity once locked into ski mode.

    Scott decided to buck trends when it came time to equip the S1 with a walk mode. Instead of placing the mechanism along the back of the cuff, it put it at the front of the boot where it can be quickly engaged as you tighten the buckles during transitions. The S1 liner was designed with backcountry touring in mind. As such, it's made from from a quick-drying material, so you won't have to worry about it being wet and cold when you wake up one morning on a hut trip to find your liners were moved away from that prime piece of real estate in front of the wood stove.
    • 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

    Tech Specs

    Shell Material
    Grilamid, Powerlite Carbon Longfiber
    Last Width
    Buckle Material
    Lean Angle
    Walk Mode
    S1 Light
    Thermo-moldable Liner
    Binding Compatibility
    Claimed Weight
    [single, size 26.5] 1330g
    Recommended Use
    backcountry skiing, ski mountaineering
    Manufacturer Warranty
    limited 2 years

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

    Have questions about this product?

    Review 1, Initial Observations

      The rating may change.
      Age 60
      Weight 147
      Height 5'6"
      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?