SWANS Sports Made in Photochromic NEURON for Sunglasses, Japan, Lenses, E-NOX G3, Running, Marathon, Tennis, Golf, Baseball, ENNG3-0066 CSK, Adult

Made in Japan, adult size (men's and women's), photochromic lenses, dedicated case included. Lens color: 0066 / Photochromic clear to smoke, Visible light transmittance: 17-88% (color changes with UV light) Lens features: Photochromic... The lens tint changes in response to ultraviolet light, making it usable in all weather conditions from sunny to rainy. UV protection rate: 99.99% Frame features: Adjustable nose pads, under-temple structure that lowers the center of gravity to reduce vertical slippage specific to running. Frame color: Matte clear smoke