DEEP COVER DERBY VISOR CROWN SYSTEM sold separately. Does not include DEEP COVER helmet. Contact your local skate shop for expert installation or do it yourself by following our Installation Instructional Video.* Product Details Patent-Pending DERBY VISOR CROWN designed and rigorously tested by top derby skaters. CE Certified Impact-Resistant Polycarbonate protective lens with Hi-Definition optics for distortion-free optical clarity. Anti-Scratch and Anti-Fog coatings, with additional integrated Venting Channels to ensure clear vision the heat of the bout. Installation required. Easy to assemble on any DEEP COVER Helmet and requires only 2 retaining screws to secure the visor to the Crown. Includes a soft bag for safe storage and microfiber cleaning cloth. Fits DEEP COVER helmet style ONLY.