The FOX Main Core Goggles are the most affordable FOX goggles on the market, featuring the Variable Lens System (VLS™). With VLS™, the goggles are compatible with both standard lenses (included) and injection-molded lenses (sold separately) within the same frame. They offer a wide field of view, triple-layer foam, a non-slip silicone strap, and a tear-off visor function, making them a versatile choice that saves you money. Comes with a microfiber goggle bag. Lens Technology: Clear Lexan lens with UV protection. Material Composition: 51% TPU, 11% Polycarbonate, 38% Nylon.