The FOX glasses Main are the cheapest FOX glasses on the market and have the Variable Lens System (VLS™). Thanks to VLS™, the glasses are compatible with both standard lenses (standard) and injection molded lenses (sold separately) in the same frame. With a generous viewing window, three-layer foam, non-slip silicone strap and tear-off visor function, it is a true all-rounder and is easy on the wallet. Includes microfiber glasses bag. Lens technology: Clear Lexan lens with UV protection. Material: 51% TPU, 11% Polycarbonate, 38% Nylon