14 vents ski helmets for safty 1.Material:EPS+PC Shell 2.Technology: In-Mould 3.Removable Goggle Lock Strap Vents: 14 air ventsWeight: 305-320gMaterial:EPS+PC ShellTechnology: In-MouldRemovable Goggle Lock StrapRetension system: Head LockComfortable and Washable EarPads and LinerColors and Patterns Could be Designed According to Customer’s need.Size:S,M,LCE,GS approved