Front: 100% Ring Spun Combed Comfy Cotton Back: 100% Polyerster Mesh , Structured, Firm Front Panel, Low-Fitting. 5 panel cap; Seamless Front Panel with Full Buckram; Pro Stitch on Crown; 6 Rows Stitching on Visor; Matching Fabric Undervisor; Matching Color Sweatband; Adjustable Hook & Loop Closure ; Size: OSFM - Adult (58cm/22.8")