Features1Lightweight integrally-molded EPS bicycle helmet. 225 vents bring cool air in and flush warm air out, well-ventilated. 3Soft removable, washable, antibacterial pads for best wearing comfort. 4Rotary internal regulator adjusts the tightness of helmet.SpecificationBike helmet is made of integrally-molded EPS, durable and comfortable. Stay safe and cool while Cycle with Lixada helmet. Features:Lightweight integrally-molded EPS bicycle helmet. 25 vents bring cool air in and flush warm air out, well-ventilated. Soft removable, washable, antibacterial pads for best wearing comfort. Rotary internal regulator adjusts the tightness of helmet. Specifications:Color: Yellow, Orange, Red, Blue, Green, White (optional) Material: EPS Vent qty: 25 vents Head circumference: 56~62cm / 22.0~24.4in Head width: 18.5cm / 7.3in Item weight: 238g / 8.4oz Package List:1 * Bike Helmet 1 * VisorPackage List1 * Bike Helmet 1 * Visor