If you're serious about fishing, it's time to step up to the performance of Monster Dog sunglasses. The wrap design uses durable O Matter® frame material built for outdoor activities and designed to grip your head so the glasses stay firmly in place no matter how big the fish, how long the fight or how much you perspire. Oakley offers three fishing-specific polarized lens options in the Monster Dog: Shallow Blue, Deep Blue and VR28. For rivers, shallows and saltwater flats choose Shallow Blue™ lenses. The Deep Blue™ lenses are engineered to cut out harsh glare in a dominantly blue environment. They are ideal for bright and sunny conditions on the open water. If you need to read river bottoms and spot the reds and greens of prized species, choose the VR28® lenses. They eliminate harsh blue light while enhancing the colors you need to work the line with precision. Iridium® lens coating maximizes glare reduction. Oakley's fishing-specific eyewear enhances contrast and depth perception for superior underwater viewing. Oakley lenses filter out 100 percent of UVA, UVB, UVC and harmful blue light, and pass American National Standards Institute (ANSI) 87.1 for optical standards and protection from impacts.