Features: Professional UV protection, anti-dust and anti-droplet. Breathable polyester material, cool and quick dry, sweat absorption and moisture-wicking. Easy to wear, just tie the headbands at the back of your head. one size fits all. Helmet friendly, have no influence on helmet wearing. Reinforced stitching, excellent craftsmanship, strong resilience. Suitable for cycling, hiking, running, cooking and any other activity where you need protection from the sun and sweat.