Front 100 Cotton Back 100 Polyester Mesh, Structured, Firm Front Panel, Low-Fitting. 6 Panel Cap Seamed Front Panel w Buckram 2 Sewn Eyelets No Eyelets on Mesh 6 Rows Stitching on Visor Matching Sweatband Plastic Snap Closure SizeOSFM - Adult (58cm22.8)