This Merrell® Men's winter overachiever features a waterproof membrane for all-over defense from snow and low-bulk insulation for all-around warmth in cold temps. Waterproof membrane seals out water and lets moisture escape Waterproof coated leather upper Metal hook with traditional lace closure Bellows tongue keeps out debris Protective and abrasion resistant rubber toe cap Fleece lining Synthetic lightweight, low bulk insulation for warmth and comfort Kinetic Fit™ BASE removable contoured footbed for flexible support Molded nylon arch shank Merrell® Air Cushion in the heel absorbs shock and adds stability Lightweight EVA foam midsole for stability and comfort Merrell® sticky rubber lug outsole with durable traction that grips when and where you need it Product Features: Outsole:Merrell Sticky Rubber traction with 5mm lug depth Lining:Fleece Upper:Waterproof Coated Leather Weight:1 lb. 4 oz. (1,002 g) Insulation:200 g Footbed:Kinetic Fit™ BASE; Merrell® Air Cushion Support (shank):Molded Nylon Arch Toe Protection:Molded Rubber Insert:Waterproof, breathable membrane Merrell Men's Thermo Chill Mid Waterproof Hiking Boot