Dragon&';s 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 Lumalens color optimized lenses bringing next level clarity, adaptability, and style to the Dragon lineup. Medium Fit Cylindrical lens Swiftlock Lens Change System Patented Frameless Technology Premium Injected Cylindrical Lens Super Anti-Fog Coating Armored Venting Triple Layer Face Foam w/ Hypoallergenic Micro Fleece Lining Silicone Strap Backing Helmet Compatible Includes bonus lens