Oakley tapped into their surf heritage when they designed the Hydra Prizm Sunglasses and we are here for it. The throwback semi-rimless frame with a curved shield lens paired with the Oakley B1B logo helps us survey the beach in vintage style. However we're thankful that the Hydra's retro design ends at aesthetics with Oakley opting instead for a modern-performing Prizm lens to enhance color and eliminate distortion down by the water.