Oakley Holbrook OO9102 Prizm Dark Golf feature patented High Definition Optics (HDO) technologies for unmatched optical performance. These Oakley golf sunglasses are ideal for bright, sunny days on the course. Plutonite polycarbonate lenses filter 100% of all UVA/UVB/UVC and harmful blue light. The lenses feature Prizm technology that helps fine-tune your vision for specific sports and environments by maximizing contrast and enhancing visibility; Prizm Dark Golf (22% light transmission) lenses have a brown base that softens bright light, gives a warmer appearance to colors, and increases contrast so it's easier to read greens and follow the flight of the ball. These Holbrook sunglasses boast O Matter frames, which ensure a Three-Point Fit that holds lenses in precise optical alignment while eliminating pressure points. These Oakley sunglasses include a microfiber cleaning bag to keep them clean and protected, as well as a manufacturer's 2-year limited coverage warranty that begins the date of purchase and covers against manufacturing defects in material or workmanship. Manufacturer style #: OO9102. HDO for unbeatable clarity, impact resistance, and 100% UV filtering Plutonite polycarbonate lenses filter 100% of all UVA/UVB/UVC and harmful blue light Prizm technology for ultra-precise color tuning on the golf course O Matter frames are lightweight and stress-resistant Three-Point Fit holds eyewear in precise optical alignment Includes microfiber cleaning bag and 2-year limited coverage warranty