Oakley® taps into its surfing heritage with Hydra, a Razor Blades-inspired, semi-rimless sunglass with a shield lens. Featuring the Oakley B1B logo on the temples, Hydra is accentuated by a modern trigger stem design, reminiscent of Razor Blades´ origins in surf culture. A plant-based BiO-Matter™ frame and three-point fit helps provide balanced fit and comfort while Prizm™ Lens Technology enhances color and contrast.Features: - Design: Razor Blade Inspired, Semi-Rimless Cylindrical Lens Shape- Frame Material: Lightweight, Durable Bio-Matter® Frame With Tuned Flex For Balanced Fit, Comfort, And Head Retention. Bio-Matter Is Made From Bio-Materials Having At Least 56% Bio-Based Carbon Content (Representing Ratio Of Castor Oil To Fossil Sources)- All Day Comfort: 3 Point Fit With Razor Blade Inspired Stem Design- See More Details: Available With Prizm™ Lenses That Are Designed To Enhance Color, Contrast And Detail To Make The Most Of Any ActivityImpact Protection:- Oakley lenses are designed and tested under extreme high mass and high velocity circumstances to ensure uncompromising protection across a wide range of demanding conditions.- Light Transmission: 11%- Contrast: Increased