The Fox Racing Airspace/Main MX20 Lexan Lens is compatible with Variable Lens System (VLS) goggles only. This lens system allows for the transfer of standard and injection molded lenses in the same frame. Airspace and Main goggles share the same standard and injection molded lens as well as tearoffs. Features: Compatible with Variable Lens System (VLS) goggles only Airspace and Main goggles share the same standard and injection molded lens as well as tearoffs Specifications: Model: Fox Racing Airspace & Main Color: Clear Anti-Fog Coating: No Tear-Off Compatible: Yes