A serious boot for the devoted hiker and backpacker. The lightweight upper is breathable and waterproof, and the contoured footbed provides exceptional comfort. Nubuck with high abrasion molded synthetic support frame and scratch rubber toe cap upper. Omni-Tech waterproof/breathable membrane. Durable hooks and D-rings. Contour Comfort 3D with Omni-Fresh featuring AgION anti-odor treatment. Injected full length polypropylene lasting board insole. Poured PU with steel shank provides torsional rigidity and support midsole. Vibram rubber compound with aggressive lug tread pattern outsole. Contour Comfort : A sock liner that interacts with the natural contours of the foot providing the ultimate in support and comfort.