100% Cotton Twill. Fabric: Brushed. 5 Panel Design, 6 Row Stitching, Button at Top, Contrast Peak, Low Profile, Semi-Curved Peak, Stitched Ventilation Eyelets, Unstructured Crown. Fastening: Self Fabric Strap, Tri-Glide Buckle. Sustainability: Amfori, BSCI, REACH. Tearaway Label.