The FOX Goggles Main Core - Spark by FOX RACING offers the best price-performance ratio in the market and features the Variable Lens System (VLS™). Thanks to VLS™, these goggles are compatible with both standard lenses (included) and injection-molded lenses (sold separately) in the same frame. It boasts a generous viewing window, triple-layer foam, a non-slip silicone strap, and a tear-off visor function, making it a versatile and budget-friendly choice. The lens technology includes a mirrored Lexan lens with UV protection. A microfiber goggle bag is also included. The material composition is 51% TPU, 11% polycarbonate, and 38% nylon.