Suitable for children aged 4-12, Evolve glasses have been specially developed to fit the size and shape of children's heads. Made from lightweight, flexible and bio-based bio-grylamide, the frame features snap-on hinges that ensure the sides break off in the event of a fall, helping to prevent damage. The new KidZ by Zeiss children's lenses provide the best protection for little eyes. The lenses provide full UV protection and minimize visible light transmission across all color wavelengths to prevent color distortion. For added safety, Evolve glasses come with a removable strap.