Uppers and gussets are leather-free using suede-effect microfiber, a new generation of sustainable synthetic material. The Vibram Junko outsole features a wider heel and forefoot for extra stability while providing more protection for the upper. The Megagrip sticky rubber compound provides traction on and off the trail in both wet and dry conditions. GORE-TEX Extended Comfort membranes guarantee waterproof and breathable protection for the life of the boot. PU rands protect the toe box and uppers from rock and debris while preserving the life of the boot.