Armycrew Neon High Visibility 5 Panel Foam Front Trucker Mesh Back Baseball Cap. 60% Polyester , 40% Nylon. Solid colored neon trucker hat is sure to keep you visible at all times. Front foam panel with 4 mesh back panels, 5 panels, high crown, constructed crown. Fitted with an inner sweatband, rope band around the front crown. Stiff and pre-curved bill, same color under bill, finished with an adjustable plastic snap closure. One size fits most.