100% Cotton; Sport Grey And Antique Heather: 90% Cotton, 10% Polyester; Safety Colors And Heather: 50% Cotton, 50% Polyester. Imported. Pull On closure. Machine Wash. 0.7″ high. 14″ wide. Seamless double needle collar. Taped neck and shoulders for durability. Double needle sleeve and bottom hem. Tubular fit for minimal torque.