100% Recycled Polyester. Design: Contrast. 5 Panel Design, Button at Top, Contrast Sandwich Peak, Laser Cut Ventilation, Pre-Curved Peak, Structured Front Panel, Tearaway Label, Ultra-Soft Sweatband. Fabric Technology: Moisture Wicking. Fastening: Snapback. Sustainability: Amfori, BSCI, GRS Certified, REACH. Ref: UTPC8146