New Dragon Alliance Nfx2-Split/Lumalens Green Ion Lens Goggles In One SizeOur most advanced goggle with a cylindrical lens, the NFX2 has all the bells and whistles: Patented Frameless Design, Swiftlock technology, armored venting, Super Anti-Fog coating, bonus replacement lenses and more. Additionally, the NFX2 utilizes our Lumalens color optimized lenses bringing next level clarity, adaptability, and style to the Dragon lineup. This goggle utilizes features derived from Dragon's patented Advanced Projects X (APX) technology.