The Oakley Catapult Goggle is made with O Matter, so it can handle the kind of chill that sends shivers down mountain veterans, staying flexible while maintaining superior impact resistance. The fit is comfortably balanced, thanks to a strap clip system that articulates and even fits in a helmet. On the face zone, the Oakley Catapult Goggle is lined with a triple layer of polar fleece foam that draws sweat from your skin with moisture wicking action. The optical performance is everything you expect from Oakley goggle technology. Lexan« lens material blocks 100% of all UVA, UVB, UVC, and even a big chunk of the harmful blue light that hits you at high altitude. The Oakley Catapult Goggle has F2 anti-fog technology to help the dual vented lens stay clear, and you can choose options including Iridium« lens coating that balances light transmission and reduces glare. This design has everything you need, so if you wear prescription glasses, get the goggle thatÆs made for you and catapult performance to the next level. Features: òDesigned to fit over Prescription eyewear òFlexible O-Matter« chassis òBalanced fit (with or without a helmet) via articulating/interchangeable O Matter« strap attachments òAll day comfort of moisture wicking triple-layer polar fleece foam òFog elimination of dual vented lenses with F2 anti-fog technology òLexan« lens material provides 100% protection against UVA, UVB, UVC and harmful blue light òTuned light transmission of Iridium« lens coating (optional) òOptimized to fit most faces