Features1The shell is made of highdensity ABS collisionresistant material, impactresistant, dropresistant, shockproof, and protects the user's safety to a great extent. 2The design of the switchable air vent function can control the amount of air intake according to the physical condition, free control of ventilation/keep warm, and onehanded control of opening and closing with gloves. 3The lining edge and the contact surface of the top are brushed soft fabrics, which are comfortable to wear. 4Suitable for cycling, skiing, skateboard, etc. 52 different sizes for you to choose, neet your different needs.SpecificationItem type:CyclingHelmetMaterial:PC + EPSColor: blackOptional Size: M, LPackage List1 xCyclingHelmet1 x Instruction1 x Cycling goggle1 xCyclingneckerchief