Features: The lining of the helmets is made of environmentally friendly material, with fine workmanship, soft and comfortable, it is detachable for convenient cleaning, durable and exquisite. The mouth The top -Ventilation design allows cool air to flow in and out, keeping your head cool, suitable for all seasons. Ergonomic design and lightweight helmet can reduce the burden on the head and improve your riding experience. Safety buckle and locked lens base ensure stability and comfortable to wear. We offer four styles and three sizes for you to choose from to meet your different tastes and needs. Features: Material: ABS + Cotton Color: Multicolor (Style A, Style B, Style C, Style D) (Optional) Head Circumference: 57-58cm/22.4-22.8inch (M) 59-60cm/23.2- 23.6 inch (L) 61-62 cm / 24 -24.4 inch (XL) (optional) Weight: 1800 g / 63.5 oz Helmet size: 31.5 * 26 * 24 .5cm / 12.410.29.6in 11.810.27.9in Package List: 1 * Motorcycle helmet