GORE-TEX (GTX): 100% waterproof and breathable, GORE-TEX liners ensure that no water gets in, while allowing sweat and moisture to get out.
Removable OrthoLite Footbed: Three layers of varying density are combined for maximum cushioning and support. The entire footbed is made of open-cell polyurethane for better heat dissipation and air circulation.
PU Midsole: With integrated polypropylene board to provide support underneath the entire length of the foot.
Vibram® Tsavo Outsole: Superior traction in rugged, high-angle terrain.
Dynamic Response System: Engineered for optimal stability, the unique framework allows for springboard return, even in cold environments, while the dual-density midsole provides superior shock absorption and durability.
How It Fits: The 851 last is an update to our popular 850 last. This last fits true to size with an athletic and supportive fit while providing ample room in the toe. Offering a specific heel shape that locks the heel in place for better fit and comfort on the back end of the boot, this supportive fit is ideal for those needing high mileage performance from their gear.
365-Day Warranty: If you suspect your purchase isn’t up to our unrelenting standards, or is defective in any way, we want to make things right. We offer a 365-day warranty across our entire footwear line.