1、Tough and durable: PVC \u0026 PC, EPS foam material is safely and helpful to decrease the impact forces of the collision. 2、Safe: adjustable straps and CPSC Certified can protect your head, which meets the satisfactions of most Cycle riders. 3、Comfortable: The special aerodynamic design that makes air ventilated can keep cool during riding a bike. 4、Lightweight: 225g super lightweight helmet will not cause any burden to the rider\u0027s head during Cycle. 5、Services: If you have other question,please connect us in time. Features: Tough and durable: PVC & PC, EPS foam material is safely and helpful to decrease the impact forces of the collision. Safe: adjustable straps and CPSC Certified can protect your head, which meets the satisfactions of most Cycle riders. Comfortable: The special aerodynamic design that makes air ventilated can keep cool during riding a bike. Lightweight: 225g super lightweight helmet will not cause any burden to the rider's head during Cycle. Services: If you have other question,please connect us in time. Specifications: Color: Red,White,Black,Blue(optional) Material: EPS+PC Head circumference: 55-60cm Item Size: 330*160mm/13*6.30in Weight: 225g Packing List: 1×Bike Helmet 1×Bike Helmet