POC CRAVE CLARITYCrave features a lightweight, flexible and durable grilamid frame, which makes it perfect for almost any athletic endeavor. The rubber stays grippy even when wet so the glasses will stick to your nose when you move, regardless of rain or transpiration. The durable PC lens from Carl Zeiss Vision offers outstanding optical performance and the open frame construction provides ventilation that helps to evacuate steam. The lens is ripel treated to help