The Dragon NFXs snow goggles feature frameless design, armored venting, and Lumalens technology for improved color vividness and clarity New - unused. Dragon - Lumalens in rose pink/red. £72 new. Engineered to improve and optimize visibility in all environments, Dragon’s exclusive Lumalens® technology delivers superior colour vividness, enhances contrast, improves depth perception, and reduces eye fatigue for better performance.