The sunlight contains visible and invisible electromagnetic waves. The most harmful invisible rays are UV rays (ultraviolet radiation), which can be dangerous even on cloudy days: clouds absorb only a maximum of 10% of these rays. Flex temples These temples, equipped with a spring hinge, are soft and comfortable, adapting to all face shapes and sizes. Sunglasses Cat. 3 UV rays damage the cells of the eye and can lead to conditions of varying severity. SUN glasses provide lenses for 100% UV protection of category 3, are glare-free, and filter 100% of the UV radiation from light. Glossy-effect frame The lightweight frame has a glossy effect that feels pleasant.