Description of Oakley XS O Frame Snow Goggles - Jet Black / Persimmon All the clarity and protection of our O FRAME® goggles is available for smaller faces, thanks to the reduced cranial geometry of this specially engineered youth fit. Performance remains full scale with optically pure LEXAN® in a vented dual lens design that cuts fog with F-2 Series treatment. The flexible URETHANE® frame seals with the comfort of double-layer face foam, and texturing on the interior surface helps eliminate reflected glare. Features: Persimmon (Dual Lexan) Lens: Flat to low light. Filters blue light to boost contrast and increase depth perception in a wide variety of conditions. Light Transmission: 55 Protection Index: 1 Conditions: flat to low light Neutral / Contrast: Contrast