Kenetrek Cowboy Insulated Pac Boot Super thick 6 ounce oil tanned leather uppers are contoured to fit your leg precisely. Snut-Fit lacing system with Taslan laces and Power D-Ring lace anchors for firm lacing pressure. Removable 6 mm thick three part liner quilted from a wicking durable synthetic, 400 grams of Thinsulate Ultra Insulation, and finally 3 mm of wool felt to insulate even when damp. Hand made rubber cowboy bottoms feature a roper style toe and steel shanks with double thick midsoles. Stirrup friendly Kenetrek Cowboy Outsole design has a deep and open tread design for serious grip in snow and mud while the Stirrup Rail that surrounds the K-lugs keep them from catching on anything but the ground.