Get free shipping and sales for the The North Face Men’s Four Shadows GTX Shroom Brown/Wheat-T Brown Footwear The Four Shadows GTX is a superior high-cut cold-weather boot designed to ensure winter-time traction and stability. Features a Gore-Tex breathable membrane. Synthetic nubuck upper with bomber abrasion-resistant mesh. Contains 400g PrimaLoft Eco recycled insulation. This eco-friendly material uses a minimum of 30% post consumer recycled fibers yet still provides the same performance as regular PrimaLoft insulation. The Dri-Lex gusseted fleece tongue and collar lining provides excellent moisture management. Heal Cradle technology encompassing a dual-density EVA midsole with an injection-molded EVA X-2 heel insert. Full-length injection-molded TPU shank for optimal support and stability. TNF Winter Grip rubber outsole consists of a softer, tackier rubber compound designed specifically to provide ample traction in the wettest and slickest weather conditions. Ice Pick temperature-sensitive outsole lugs for added traction. Once temperatures fall below freezing, the rubber hardens, providing ultimate biting traction. Comfort Range -40 F / -40 C; Last TNF-SB-01 Is a generous, comfortable, all-day wearing last with sufficient room for insulated winter socks and layering.