;)
Dragon says:
The all-new NFX2 features the rapid-fire lens change of Swiftlock Technology, making it our most advanced cylindrical lens frame. Delivering the easiest and most secure lens change ever, the NFX2 is engineered for an airtight lens-to-frame interface and backed by Super AntiFog Technology. The NFX2 brings next level clarity, adaptability, and style to the Dragon lineup.
Swiftlock Lens Change System
Patented Frameless Technology
Optically Correct 6 Base Injected Cylindrical Lens
Super Anti-Fog
Armored Venting
100% UV Protection
Triple Foam with Hypoallergenic Micro Fleece Lining
Silicone Strap Backing
Helmet Compatible
Medium Fit
Green Ionized Lens
Base Color: Grey
Exterior Color: Green Ionized
Variable Light Transmission 19-21%
Best for Bright Sunny Conditions by Adding Definition and Cutting Glare.
Pink Ionized Bonus Lens
Base Color: Clear
Exterior Color: Pink Ionized (light coating)
Variable Light Transmission 62-66%
Best for Variable Low Light to Cloudy Conditions by Adding Definition and Cutting Glare.