Stacking wood or clearing brush, hard working hands deserve the durability of System 5 synthetic leather. The Carhartt Men's Insulated Leather Safety Cuff Gloves are made of sturdy cotton duck with a System 5 synthetic leather palm, suede cowhide reinforced patches, and knuckle protection. Insulation keeps hands warm.FeaturesBrushed polyester lining for comfortSystem 5 synthetic knuckle protectionEasy-on safety cuffReplaces style A513Durable cotton duck with System 5 synthetic leather palm and cowhide suede palm patchesC100 3M Thinsulate insulation for maximum warmth