VCOROS Half Helmet Motorcycle Half Face Retro Helmet for Unisex-Adult with Quick Release Buckle Sun Visor DOT Approved For Scooter ATV Chopper GLOSS WHITE SIZE LARGE COMES WITH DUSTBAG Product Description Features: Certification: ECE 22.05 / DOTFMVSS-218 certification ABS shell with a thick, high density EPS liner. Removable and Washable Padding. Adjustable nylon chin strap with snap release buckle. Sizing: Measure the circumference of your head 1" above your eyebrows & around the largest. portion of the back of your head: - Medium: 22.44" - 22.83" - Large: 23.23" - 23.62" -X-Large: 24.02" - 24.41" - XX-Large: 24.80" - 25.20" Package Contents: 1 * Motorcycle Half Helmet with dust bag • Certification: ECE 22.05 / DOT FMVSS-218 certification • ABS shell with a thick, high density EPS liner; • Adjustable nylon chin strap with snap release buckle.