TPU creates a sturdy, dependable frame for this pair of winter-weather hiking boots. Within it, an abrasion-resistant sole gives you the power to traverse difficult terrain, a waterproof outer blocks out the elements, and a BDry™ membrane offers a second degree of moisture protection. . Upper is made out of waterproof nubuck. . Fabric lining. . Insulated with 200g 3M™ Thinsulate™ insulation. . BDry™ Breathable Membrane keeps moisture out. . Cushioned footbed creates a supportive feel. . With a gaiter D-ring. . Granite Peak rubber outsole, with a molded toe cap and heel kick, offers abrasion resistance. . Lace-up closure. . Nylon shank gives you better stability. . TPU chassis. . Imported. .