Our NASA Insignia Symbol Embroidered Iron On Patch Mesh Trucker Snapback Cap is Perfect For Any Occasion. 65% Polyester 35% Cotton Front, 100% Nylon Mesh Back, Structured, Firm Front Panel, 6-panel cap, Seamed Front Panel with Full Buckram, Pro Stitch on Crown, 8 Rows Stitching on Visor, Matching Fabric Under-visor, Matching Color Sweatband, Plastic Adjustable Snap, One size fits most. Please be aware that the Black Red American Flag Patch is slighty bigger than all other flag patch color options.