Ounce-for-ounce, the Main Drive Goggles are the best value on the market for SXS/UTV adventures, and feature our Variable Lens System (VLS). VLS makes your goggles compatible with both injection-molded lenses (stock) and standard lenses within the same frame. With an expansive viewport, triple-layer foam, and tear-off lens functionality, they are a heavy hitter and light on the wallet.