HIT THE TRAIL WITH THE OAKLEY SLIVER EDGE PRIZM SUNGLASSES.At high speeds, eye protection is crucial to your safety. Get that eye protection with the Oakley Sliver Edge Prizm Sunglasses. The semi-rimless frame is aerodynamic and eliminates blind spots in your peripheral that full-rim glasses wouldn;t. The O Matter frame is lightweight without sacrificing durability. The Oakley Prizm lenses enhance colors and contrasts to give you great vision for biking and running. FEATURESHigh wrap for maximum coverageSemi-rimless design for less weight and better air flowDurability and all-day comfort of lightweight O-MatterGao frame materialThree-Point Fit: Comfort and performance that holds lenses in precise optical alignmentFrame suitable for medium to large facesPrizmGao lenses enhance color, contrast and detail for an optimized experienceHDPolarized: Minimizes glare via technology that produces a comprehensive, single-layered lens (optional)