100 Polyester, Structured, Firm Front Panel, Flexible Fit. 6 Panel Fitted Cap Seamed Front Panel with Full Buckram 6 Sewn Eyelets 6 Rows Stitching on Visor Matching Color Undervisor OTTO FLEX Sweatband - Stretchable, Antibacterial, Anti-Odor and Moisture Wicking U.S. Patent 6347410 Available in SM (7 - 7 38) LXL (7 38 - 7 34) This Style Replaces 11-914