00% Cotton. Pure Cotton Twill Classic Cadet Army Cap. 4 Sizes Available - Small (7 in)(56.5CM)/ Medium (7 1/8 in)(57CM)/ Large(7 3/8 in)(59CM)/ X-Large (7 5/8 in)(61CM). Flat Top / Fitted Size / Semi Pre-Curved Visor. GREAT UNISEX DESIGN FOR BOTH MEN & WOMEN. EXCELLENT QUALITY & DETAILED CONSTRUCTION.