Front: 100% Cotton Back: 100% Polyester Mesh , Structured, Firm Front Panel, Low-Fitting. 5 panel cap; Seamless Front Panel with Full Buckram; Curved Visor; 6 Rows Stitching on Visor; Matching Fabric Undervisor; Matching Color Sweatband; Plastic Adjustable Snap; Size: OSFM - Adult (58cm/22.8")