The sun releases a wide range of electromagnetic waves, some of which are visible to the human eye, while others are not. Among these waves, the most hazardous ones are the ultraviolet(UV) rays. Even when the sky is cloudy, these rays can still pose a significant threat to human health as clouds are only capable of absorbing up to 10! of them Sun lenses Polarized cat. 3 SUN sunglasses with polarized category 3 lenses offer 100% UV protection and eliminate glare, safeguarding the eyes from harmful rays and providing clear vision in bright conditions. Branches flex Featuring flexible and comfortable arms with spring hinges, the SUN sunglasses can easily adapt to all face shapes and sizes for a perfect fit.