Front: 100% Cotton Back: 100% Polyester Mesh, Structured, Firm Front Panel, Low-Fitting. 6 Panel Cap; Seamed Front Panel with Full Buckram; 2 Sewn Eyelets; Precurve Visor; Matching Fabric Undervisor; Stretchable Comfy Fit Sweatband: Moisture Wicking / Anti-Odor / Antibacterial; Adjustable Hook and Loop Closure; Size: OSFM - Adult (58cm/22.8")