Bicycle Helmet,Bike Helmet,Cycling Helmet,Bike Protector BLD-815 Vents: 22 air vents Weight: 230-245gMaterial:White EPS+PC ShellTechnology:In-MouldRetension system: Head LockVisor: fit in VisorComfortable and Removable LinerColors and Patterns Could be Designed According to Customer’s need.Size:S,M,LODM & OEM iswelcomed!