Timberland PRO Men's Gridflex Insulated Canvas Utility Pant Main Fabric: 98% Cotton/2% Spandex; Trim: 75% Cotton/25% Nylon Imported Machine Wash Flexible cotton canvas provides a durable but comfortable fit Four knife-pleated cargo pockets and two slash pockets to hold anything and everything Pocket binding and back-hem kick plate in rugged cotton, nylon provide reinforcement where you need it, while front cargo pockets give you easy access to necessities Crotch gusset lets you bend, kneel and reach with comfort and security Fully lined in 100-gram polyester with quilted nylon for extra warmth and protection