please keep in mind that the crown pad varies depending on the helmet size

it works with the helmet during impact to help divert compressive forces away from the neck and spine

The fully perforated air version is ideal for riding in warmer climates and offers fully perforated leather on the back hand

and comfort

vision 8 5 3 smk lns RGroup_3571723 please keep in mind thatVISION 8, 5, and 3 Lenses are constructed from the strongest and optically perfect, Polycarbonate material available. Anti fog and hard coat is applied and all lenses provide 100% UVA protection. The VISION Lenses have a VLT between 25% and 90% depending on the chosen tint. The VLT is the "visible light transmission," which is basically how much light the lens lets into the goggles. Look amazing with excellent optics at the track or on the trail.