This trucker cap with a mesh back will be a comfy and classic choice. It’s made of 60% cotton and 40% polyester. You get the comfort of cotton paired with the fast drying properties of polyester. It has a 6 panel (hard buckram) construction with a Permacurv® visor. Standard 3.5” crown with an adjustable head circumference of 21⅝″–23⅝″.