Square sunglasses for adults by izipizi. The sun emits visible and invisible electromagnetic waves. The most harmful invisible radiation is ultraviolet (UV) rays and they are dangerous even when it is cloudy: clouds only absorb 10% at most. Ultraviolet (UV) rays damage eye cells, which results in pathologies of varying severity. SUN glasses with 100% UV category 3 lenses protect from glare and filter 100% of ultraviolet (UV) rays. The temples equipped with a spring hinge are flexible and comfortable, and adapt to all morphologies and face sizes. They are made of rubber for a much more pleasant heel and a very light feeling when wearing them. Thanks to its modern and original design, its flexible temples and its rubber feel, the adult sun collection perfectly combines quality, style, comfort and lightness. This model complies with European standards for pre-mounted glasses (NF EN 14139) and international standards for sun protection glasses (ISO 12312-1).