The high-performance Ariat® Catalyst VX Defiant 10 GTX 400G work boot keeps you comfortable and warm so you can work at your best in difficult weather and various terrain. Premium waterproof leather upper.Breathable GORE-TEX® membrane waterproof construction keeps out the wet elements for drier, more comfortable foot environment. 400g Thinsulate™ ultra-insulation provides excellent warmth and protection from the cold. Premium leather collar and tongue lining.Breathable textile lining. X-Static™ sock liner enhances anti-odor performance for a comfortable foot environment.Footbed features Ariat's most advanced Cobalt® VX technology that provides premium temperature management, advanced support, and enhanced flexibility with an engineered fit for optimal performance. Shock-absorbing EVA midsole provides excellent support and comfort.Molded TPU heel cradle.Molded heel cradle and protective rubber toe rand.Round toe.Vibram® outsole with an exclusive Ariat® design for excellent traction and stability.