Premium nylon 13 inch mid calf upper features waterproof lightweight molded rubber shell with fully insulated liningThis outdoor winter boot offers water resistant construction with quick drying lining to keep your feet dry; toggle collar to keep debris outRemovable fleece liner with foil bottom/EVA molded midsole offer extra cushioning for a comfortable fit; premier 200 gram Thinsulate insulation keeps your feet warmAdjustable hook and loop strap/toggle collar ensure secure fit; heel pull strap makes it easy to get on/offDurable multi directional rubber outsole ensures traction/shock absorption/good abrasion resistance in snowy or icy conditions