Optic Nerve Rockpile Polarized Sunglasses - Black/Brown with Blue Mirror - The Rockpile is an amazing combination of functional design with show-stopping looks. Whether you're after the ability to easily see polarized detail or natural light through the flip of a lens - or you're into the retro baseball-inspired look - this style offers unbeatable value. Amazing for viewing instruments on the water, seeing running watches, and cycling computers while giving you easy access to polarized protection. Features UV Rating: 100% UVA/UVB Protection; Lens Type: Polarized; Design: Active Sports; Warranty: Product Lifetime; Frame: Durable, Lightweight; Free Microfiber Soft Case;