UV 400 PROTECTION - Vision lenses are 400UV rated, meaning it can block 99%-100% of both UVA and UVB radiation. UV400 rated sunglasses are essential to protecting your eyes against long- term UV damage and keeping your eyes healthy when out and about.
POLARIZED LENS: Dark polarized lens can reduce glare reflected from road, water,snow and so on. It make our eyes more comfortable and see more clear.