This six-panel trucker cap with a mesh back will be a comfy and classic choice for a perfect day in the sun. 60% cotton, 40% polyester Mid-profile cap with a low-profile embroidery area Structured, six-panel cap 3.5″ crown (8.9 cm) Hard buckram front panels Mesh back Permacurv visor, matching undervisor Plastic adjustable closure Head circumference: 21⅝″–23⅝″ (54.9 cm–60 cm)