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