The X2s goggle is form and function incarnate. Ultra-premium, the medium-sized goggle utilizes our Swiftlock lens changing system that makes swapping out lenses a breeze. Coupled with Lumalens color optimized technology that offers optimal color recognition and clarity. 100-percent UV protection, a robust anti-fog treatment, and a bonus lens are just icing on the cake. This goggle utilizes features derived from Dragon's patented Advanced Projects X (APX) technology.