Feature: 1. The lining of the helmets are made of eco-friendly material, with fine workmanship, soft and comfortable, it is removable for convenient cleaning, durable and exquisite. 2. The mouth and top air ventilation design will let fresh air in and out, keeping your head cool, suitable for all seasons. 3. The ergonomic design and lightweight helmet can reduce head burden and improve your riding experience. 4. The safety buckle and locked lens base enables stable and comfortale wearing. 5. We offer you two styles and three sizes to choose from, meet your various tastes and needs. Specification: Features: The lining of the helmets are made of eco-friendly material, with fine workmanship, soft and comfortable, it is removable for convenient cleaning, durable and exquisite. The mouth and top air ventilation design will let fresh air in and out, keeping your head cool, suitable for all seasons. The ergonomic design and lightweight helmet can reduce head burden and improve your riding experience. The safety buckle and locked lens base enables stable and comfortale wearing. We offer you two styles and three sizes to choose from, meet your various tastes and needs. Specifications: Material: ABS+Cotton Color: Multicolor(Style A, Style B)(optional) Head Circumference: 57-58cm/22.4-22.8in(M) 59-60cm/23.2-23.6in(L) 61-62cm/24-24.4in(XL)(optional) Weight: 1800g/63.5oz Helmet Size: 31.5*26*24.5cm/12.4*10.2*9.6in Package Size: 30*26*20cm/11.8*10.2*7.9in Package List: 1*Motorcycle Helmet Package List: 1*Motorcycle Helmet