Design: Waterproof coated leather and mesh upper for long-lasting, durable protection 200 grams lightweight, low bulk insulation keeps you comfortable Metal hook traditional lace closure Bellows tongue comfortably protects the foot from debris Fleece collar provides added comfort and warmth Molded nylon arch shank adds stability and arch support Gaiter D-Ring In-Shoe Comfort: Waterproof membrane seals out water and lets moisture escape Breathable mesh lining Kinetic Fit™ BASE removable contoured insole for flexible support Merrell® Air Cushion in the heel absorbs shock and adds stability Lightweight EVA foam midsole for stability and comfort Durability & Traction: Merrell® sticky rubber outsole tuned for winter optimizes traction over cold weather surface conditions Additional Details: Lug Depth: 4.0 mm Weight: 2 lbs. 5 oz / 1028.0 G Merrell Men's Thermo Akita Mid 200G Waterproof Boots