100% Polyester. Fabric: Mini Pique. 6 Panel Design, Authentic Sticker, Button at Top, Embroidered Eyelets, Mid Profile, Pre-Curved Peak, Stitched Ventilation Eyelets, Structured Front Panel. Fabric Technology: Moisture Wicking, Showerproof, Yupoong Hybrid Technology. Fastening: Hook And Loop Strap. Sustainability: Amfori, BSCI, Ethical Trading Initiative, REACH, Sedex, WRAP Certified. Ref: UTRW9516