The sunglasses come with a protective case.
A scratch, an impact, it can happen. It happens less when your glasses are correctly stored, well protected. You can take your eyes off them, they are safe in their case.
Polycarbonate lenses, category 1
"The category 1 lenses are slightly tinted. They are suitable for low light conditions in the early morning or evening, when the sky is cloudy or there is a little fog. They filter 100% of UVA and UVB rays to protect your eyes, as even if the sun is not shining, the UV rays are there.
The lenses are made of polycarbonate, a durable material. Because once you've tried these sunglasses, you'll want to keep them for a long time."
Single lens, for style and better coverage
Sunglasses protect from UV rays, but also from rain and wind. It's a good reason not to wait until the sky is blue to wear them.The single lens, sometimes called "mask" or "panoramic", covers the face more for improved protection.
