Protection
It's important to differentiate between visible light and invisible light (in part, UV)
All our sunglasses protect from 100% of UV rays.
You'll be protected even with a transparent lens, but you might get glare. This is where the idea of categories (0 to 4) comes in.
Category 0 lets almost all light through, while category 4, on the other hand, is very dark (perfect for high mountains)
PHOTOCHROMATIC LENSES
These glasses have a category 1 to 3 photochromatic lens, meaning that the lens will vary its category based on the weather
The lens tints in around 30 seconds (45 seconds to deactivate).
The perceived brightness does not change much even when the outside brightness level changes.
For example, when cycling, the change in tint is almost imperceptible.
The tint changes gradually so the eye can adapt at the same time
Cold temperatures will activate (tint) the lens more quickly.
HOW TO CARE FOR YOUR GLASSES
To keep your lenses in good condition and benefit from a good field of vision, it is important to follow the following rules:
- Always store your sunglasses in a protective case, particularly when transporting them
- Never wipe your glasses with a dry cloth, wash them in soapy water first
- Never wipe your glasses with a T-shirt or cycling jersey
- Wipe/wash your lenses with a microfibre cloth only
CHOICE OF NOSE PIECE
The sunglasses come with several nose pieces.
There are two goals - the most obvious one being to adapt the frames to your face.
The second goal is less well-known but just as important - adjusting the nose also adjusts ventilation. The tighter the nose, the "higher" the glasses will sit on the face, and so the greater the gap. This creates more ventilation, which might be appealing in summer.
REMOVABLE FRAME
The XC RACE II has a removable lower frame. Beyond the style aspect, which remains a personal choice, it again represents the ability to adjust ventilation based on your activity. When the lower part is removed, there is greater air flow inside the frames.
To remove the lower part, just gently pull sideways (not downwards)