SWANS Made in Japan sports sunglasses E-NOX NEURON G3 (for marathon, running, track and field, cycling, tennis, baseball, golf) Worn once for running. There are no noticeable scratches or stains, but it has been stored by a non-professional. Please refrain from purchasing if you are sensitive to such things. Made in Japan, for adults (men and women), photochromic lenses, comes with a dedicated case Lens color: 0066 / Photochromic clear to smoke, Visible light transmittance: 17~88% (color changes with UV light) Lens function: Photochromic... The density of the lens changes in response to ultraviolet light, allowing use in all weather conditions from sunny to rainy, UV protection rate: 99.99% Frame function: Adjustable nose pads with fingers, under-temple structure that lowers the center of gravity to prevent vertical slippage unique to running Frame color: Matte clear smoke Frame color: Gray Lens features: Non-prescription Dirt, tears, odor, etc.: None