The best value in motocross and mountain bike gogglesOunce-for-ounce, the Youth Main Dier Goggles are the best value on the market, 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. Best-in-class viewport for unparalleled visionVariable Lens System™ (VLS) design allows transfer of standard and injection molded lens\' in the same framePolycarbonate injected lens offers UV protection and eye port protection 3-layer face foam with fleece linerLexan™ lens offers UV protectionStrap mounted third tear-off postNon-slip silicone strapMicrofiber goggle bag includedMirror injected lens