Developed for paddling, the Perma Grin features a snug fit, and an aggressive temple curve and built in ear ports for improvised retainer cords-reducing the chance of 'dropping them in the drink'. The 8 base lens shape gets larger towards the temple frames, allowing maximum protection for the eyes from windy conditions and glare typical on the sea. Constructed with 8 base shatterproof and impact-resistant Polycarbonate lenses, with no fixing screws or metal components to rust in salt water. 100% UVA, UVB, and UVC protection. Now available in high-vis Green for extra 'overboard' visibility.