Merrell Men's Thermo Akita Mid Waterproof The waterproof membrane seals out water and lets moisture escape. Constructed with a waterproof coated leather and mesh upper. Metal hook traditional lace closure. These thermo boots are ideal in colder weather conditions to help keep your feet both warm and dry while also optimizing movement through colder weather conditions (eg: snow) Key Features :  • Bellows tongue keeps out debris• Gaiter D-Ring• Breathable mesh lining• 200 grams lightweight, low bulk insulation keeps you comfortable• Fleece collar• Kinetic Fit™ BASE removable contoured insole for flexible support• Merrell Air Cushion in the heel absorbs shock and adds stability• Molded nylon arch shank• Lightweight EVA foam midsole for stability and comfort• Merrell sticky rubber outsole tuned for winter optimizes traction over cold weather surface conditions• Lug Depth: 4.0mm• Weight: 2LBS-5OZ/1028.0G Merrell Men's Thermo Akita Mid Waterproof - J036441 - Black