Brand New adults one size fits most, That's My Ass Bro Stop Retro Trucker Hat with adjustable closure in the rear. Foam Hat with poly mesh back. That's My Ass Bro Stop Hat Color - White / Camo CAP FEATURES: 100% Polyester Front 100% Nylon Mesh Back 5-panel cap Seamless Foam Front Panel with Lining 8 Rows Stitching on Visor Matching Fabric Under visor Adjustable Plastic Snap