Waterproof full-grain leather and nylon upper - GORE-TEX waterproof breathable lining - 400G PrimaLoft insulation - Rugged hardware for secure fit and long lasting performance - Cushioning PU footbed - TERRA FORCE NEXT platform combines an internal and external shank system which helps to provide arch support and torsion control - Vibram SPE midsole for maximum rebound comfort and support - Thermoplastic PU shank A Bi-Fit stability board for underfoot comfort reduced weight and added forefoot flex - TERRA FORCE NEXT platform offers lightweight performance and stability - Vibram Pronghorn outsole offers superior traction on rugged terrain - Soft toe (not a safety toe)