• Waterproof membrane seals out water and lets moisture escape. • Protective shell keeps feet dry. • Metal hook traditional lace closure. • Bellows tongue keeps out debris. • Snowshoe strap ridge for stability. • Molded nylon arch shank. • Merrell Air Cushion in the heel absorbs shock and adds stability. • Lightweight EVA foam midsole for stability and comfort. • Vibram Arctic Grip All Terrain outsole design for grip on wet ice and mixed winter conditions. Merrell Men's Thermo Overlook 2 Mid Boot Waterproof w/ Arctic Grip - Black