Jiuhe Men's Machine Gun Kelly MGK Fleece Crewneck Sweatshirt 40% polyester 60% Cotton, 40% Polyester Fiber.The Outer is 100% Cotton,in the Inside the Wool is Polyester Fiber Low Temperature Soft Water,do not Iron Avoid High Temperature. Mediumweight Round collar,Threaded collar,Threaded sleeve The graphics are very nice and it is true to size.