Why are photochromic lenses are great for cycling?

Avid cyclists tend to look for eyewear that covers more of their face and offers better protection, and tougher lenses. Glasses with photochromic lenses can easily check all three requirements. ... Photochromic lenses offer 100% protection from both UVA and UVB rays. They actually filter out a good deal of the harmful UV rays emitted from the sun, leading to healthier and happier eyes.  Try these today!  Various colors to choose from.

Certification: CE
Lenses Optical Attribute: UV400 photochromic
Lens Height: 55mm
Model Number: cycling glasses
Frame Color: MULTI
Lens Width: 140mm
Item Type: Eyewear
Lenses Material: Polycarbonate
Gender: Unisex
Frame Material: TR-90