"This 18 vents bike helmet is made of integrally-molded EPS and PC outer shell, durable and comfortable. Stay safe and cool while cycling with this cycling helmet._x000D_ _x000D_ Features:_x000D_ Lightweight integrally-molded EPS bicycle helmet with PC outer shell, impact resistant._x000D_ 18 vents bring cool air in and flush warm air out, well-ventilated._x000D_ Adjustable strap with removable chin pad and quick-release buckle._x000D_ Comfortable antibacterial padding inside, detachable and washable._x000D_ Rotate the knob at the back of the helmet ensuring a precise fit._x000D_ Snap-on visor for extra protection._x000D_ _x000D_ Specifications:_x000D_ Gender: Unisex_x000D_ Material: EPS + PC_x000D_ Vent qty: 18 vents_x000D_ Density: 75g/l_x000D_ Color: Black + orange / Red + Black / Black + green / White + grey / Grey + green (optional)_x000D_ Head circumference: 56-59cm(M) / 59-62cm(L) (optional)_x000D_ Item weight: M: 330g / 11.6oz, L: 350g / 12.3oz_x000D_ Package size: 32 * 25 * 18.5cm / 12.6 * 9.8 * 7.3in_x000D_ Package weight: 758-783g / 26.8-27.7oz_x000D_ _x000D_ Package List:_x000D_ 1 * Cycling Helmet_x000D_ 1 * Visor_x000D_ 1 * Manual(English)"