● Phtochromic sunglasses lens will change color depending on the intensity of UV light and temperature. ● Semi-rimless architecture extends coverage to help protect your eyes while giving you an expanded field of view. ● Engineered for maximized airflow for optimal ventilation to keep you cool. ● UV400 Lenses offer top UV Protection filtering 100% of all UVA, UVB, UVC and harmful blue light up to 400nm. ● Soft earsocks and nosepads increase grip with perspiration for a no slip grip.