100% Recycled Polyester. Fabric: Performance. Design: Plain. 6 Panel Design, 8 Row Stitching, Button at Top, Curved Brim, Stitched Ventilation Eyelets, Tearaway Label. Fabric Technology: Breathable, Coolmax, Lightweight. Fastening: Adjustable, Tri-Glide Buckle. Sustainability: Control Union CU811033, GRS Certified. Ref: UTRW10050