Alpina LYRON Black + Black Lens

The strength of the Alpina Lyron sports glasses is their full-frame design, which offers modern style and outstanding protection. This keeps you as safe as possible during sports while still looking good. The mirroring reflects infrared rays and thus reduces strain on the eyes. The lens is made of unbreakable ceramic material and provides 100% UV protection as well as tinting with protection level, cat. 3 Malleable nose pads as well as temples with a rubberised soft insert ensure the best possible comfort. Meanwhile, a high-quality folding mechanism keeps the strap in its position.

Features:
100% UV protection
The reflective surface reflects infrared rays
The ceramic material lenses are break-proof and offer 100% protection
Clear, undistorted vision thanks to decentred lenses
Visible Light Transmission (VLT)

This is the measure of how much light your sunglass lens lets through to your eye and can be expressed as a percentage, therefore a VLT of 1% means very dark glasses indeed, and a VLT of 100% means all the light is getting through and the lens is therefore a 'clear lens'.

Rather than quote a percentage for each lens they are categorised as follows:

Category 0 = 80-100% VLT
Category 1 = 46-79% VLT
Category 2 = 18-45% VLT
Category 3 = 8-17% VLT
Category 4 = 3-8% VLT