Raven Photochromic Glasses Prescription If you're in doubt we

If you're in doubt we advise to choose a bigger size

Its outter shell is thick enough to protect it from shocks

On the other hand the Janus photochromic lenses contain special crystals that darken when exposed to sunlight

Worldwide Delivery: 2 to 5 weeks depending on location

Protects Your Wrist

Raven Photochromic Glasses Prescription If you're in doubt weSee clearly night and day with photochromic technology The Raven lenses contain special crystals that darken when exposed to sunlight. At night they are transparent, but as light intensity increases, the lenses turn darker to protect your eyes and improve your visibility. The sunnier it is, the faster it darkens. Protect your eyes with shatterproof lenses The Raven lenses is made of a composite of Polycarbonate that is able to absorb impact without