100% Cotton Canvas. Design: Plain. 6 Panel Design, Button at Top, Pre-Curved Peak, Semi-Structured Front Panels, Stitched Ventilation Eyelets, Tearaway Label. Fastening: Gunmetal Buckle, Self Fabric Strap. Sustainability: Control Union CU811033, EarthAware, Cotton Standard 100. Beechfield Men's 6 Panel Cotton Canvas Cap in Dark Olive