A tough and durable boot for technical backcountry adventures; the Four Shadows GTX chomps into ice and snow with each step thanks to TNF Winter Grip and Ice Pick technology. Designed with a waterproof, breathable Gore-Tex membrane, these resilient boots offer superior protection for cold-weather activities. Features include Heal Cradle technology encompassing a dual-density EVA midsole with an injection-molded EVA X 2 heel insert, Gore-Tex waterproof, breathable membrane, 400 g PrimaLoft Eco recycled insulation, AgION antimicrobial dual-density footbed, Bomber abrasion-resistant mesh, and Dri-Lex fleece lining in collar and tongue. Also features a durable TNF Winter Grip rubber outsole, Full-length, injection-molded TPU shank for optimal support and stability, a Gusseted tongue, Ice Pick temperature sensitive outsole lugs for increased traction and a synthetic nubuck upper. Available Colors: Pumice Grey/Sienna Orange, Shroom Brown/Wheat-T Brown.