100% Polyester. Fabric: Twill. Design: Plain. 5 Panel Design, Authentic Sticker, Button at Top, Contrast Underbill, Flat Peak, Stitched Ventilation Eyelets. Fastening: Snapback. Sustainability: Amfori, BSCI, REACH. Style: Retro. Beechfield Men's Original Flat Peak Snapback Cap in Black