Waterproof-breathable membrane for moisture control, mid-calf height for weather protection and comfort,
gaiter hook for fatbiking in deep snow and added insulation above the ankle
200g Primaloft®; aerogel insole under the foot
100% full grain cowhide leather; 1680-denier ballistic nylon
Mountain rubber made by Vibram®, 2-bolt SPD-compatible or flat pedal
Fiberglass-injected nylon with high impact resistance
Waterproof gusseted tongue with external cord lace and cinch lock
Mens extra wide 38–50 (no size 49), full sizes only
Extra-wide last with high-volume upper profile for extra insulation space on top of the foot
SUGGESTED TEMPERATURE RANGE
0° (-18°C) to 25°F (-3°C)
With its nano-sized air pockets that block cold and heat, aerogel is an ultra-thin, compression-resistant and waterproof insulator with the lowest thermal conductivity of any solid. It is the same insulation NASA uses to protect astronauts and sensitive equipment on missions to outer space. Created by extracting the liquid from silica gel, aerogel produces a strong, durable and flexible material that is up to five times more effective than traditional thermal insulation. Other insulation materials require loft to insulate. Aerogel does not need loft to deliver its high insulation value, making it an ideal insulator between cold metal cleats and the bottom of your feet.
An ultra-thin sheet of microporous material behind our textile shells keeps you dry and warm in the harshest weather conditions. Liquid water molecules from outside of the garment are larger than vapor molecules created by body heat from the inside. The microscopic pores are smaller than liquid water molecules, but larger than vapor molecules. As a result, waterproof-breathable membranes stop liquid from the outside, but release vapor from the inside for thermal and moisture regulation.