FLIP is our newest addition to the family fusing the wide field view from a frameless goggle with a solid frame and ventilation system. The XEp lens has photochromic lens technology which automatically adjusts to weather conditions. In sunny weather conditions the lens is royal blue, in overcast conditions the lens becomes transparent purple in a matter of seconds. Dual-layered lens, anti-fog and anti-scratch coating with 100% UV400 protection. Over the glasses fit and adaptable for most helmets. This goggle is sure to make anyone flip when they see you on the slopes.