You could wear bulky mountain boots for winter protection, but it's much easier to wear The North Face Men's Chilkat Tech Boots. The streamlined design is crafted from a waterproof leather upper protected by Gore-Tex Duratherm, and they're securely fastened with a lace closure. To eliminate the bulk that most traditional shell boots have, the synthetic footbed, EVA midsole, and Vibram IceTrek sole are constructed with modern technology that feels lightweight without sacrificing durability or protection.