Kenetrek Unisex 13 Inch Rancher Insulated Boot 100% Leather Rubber sole Super thick 6 ounce oil tanned leather uppers are contoured to fit your leg precisely for incredible support and comfort Snut-Fit lacing system with stud hooks and Power D-Ring lace anchors for the ultimate in ankle support Removable 6 mm thick three part liner quilted from a wicking durable synthetic, 400 gram Thinsulate Ultra Insulation, and finally 3 mm of wool felt to insulate even when damp Traditional tractor-tread outsoles are non-marking and provide footing on wet or dry ground