Sunglasses - #M shape : round, oversize - Crystal, shiny and bio-sourced frame - 100% UV Category 3 protection - Mixed and universal model - Storage pouch included in the box Flex hinges Flexible and comfortable arms, with spring hinges, which adapt to all face shapes and sizes. Sun lenses cat. 3 UV rays damage the eye cells. With time, the renewal will be done less and less well. The SUN glasses provide adapted protection with 100% UV category 3 lenses which protect from glare and filter 100% of ultraviolet (UV) rays. Bio-sourced material The frame of the glasses is made of 45% organic polyamide sourced from castor oil. Glossy effect frame The lightweight frame features a glossy effect that is pleasant to the touch.