Photochromic lenses, or chameleon lenses, have a variable light transmission. This means that they change transparency depending on the lighting. When they get ultraviolet rays, the lenses get dark, ...

Photochromic sunglasses are nothing new in the world of performance athletic eyewear, offering skiers, mountain bikers, trail runners, and other outdoor athletes the comfort of multiple levels of UV ...

Photochromic lenses are one of your options when selecting eyeglasses. These lenses get darker in color when exposed to the sun or other sources of UV light. Photochromic lenses are ideal for people ...

Leatt is now producing eyewear, and their RideViz Pro sunglasses get two thumbs up from Steve - especially the optional ...