Description: CE Approved sports helmet with shock absorbent EPS foam core, high impact ABS shell for unisex adults, kids or youth Adjustable dial on the back to fit your head , adjustable chin strap with quick release buckle for ease of use Ultra lightweight, high strength, windproof, warm, durable and portable Air vents provide excellent ventilation, effectively helps the heat and moisture dissipation High performance helmets for multi sports such as cycling, skateboarding, scootering, inline/ roller skating, skiing Specification: Material: ABS + EPS Gender: Unisex adult/ kids The helmet has got CE certification Color: Black, Blue (Optiaonal) Size: S, M, L Size Chart: Size S: Head circumference: 50-53cm/19.7-20.8 inch Size M: Head circumference: 54-57cm/20.8-22.4 inch Size L: Head circumference: 57-61cm/22.4-24 inch Package Includes: 1 Piece Safety Helmet Note: Please allow slightly difference due to manual measurement. Color may be slightly different since different monitor. Thanks!