Janus Photochromic Cycling Glasses
See clearly day and night with Photochromic Technology
The Janus lenses contain special crystals that darken when exposed to sunlight. At night when the UV light diminishes, the lenses fade back. As light conditions change, the level of tint adjusts, offering the right tint at the right time.
The rate of discoloration is related to the intensity of ultraviolet light and the temperature.(if UV intensity and temperature is low, The speed of discoloration will become slower).
The Janus lens is made of Polycarbonate. This material is so resistant that is used in bulletproof glass, riot shields, and even astronaut helmets.
Comes with a Free Rx Lens adapter
If you wear prescriptions glasses you can fit Rx lenses in the Janus. All you have to do is clip in this simple adapter:
- Photochromic Technology
- Shatterproof Polycarbonate Lens
- Blocks 100% UVA, UVB & UVC Rays
- Adjustable and removable Lens
- Width: 143mm / Length 165mm
If you want to clean the lenses, use water .Do not use alcohol or any other chemicals. Do not store the sunglasses in an environment of high temperature or humidity.
UK: 5-10 days
Worldwide Delivery: 2 to 5 weeks depending on location.