Julbo Kid's Trainer L Sunglasses, Lime Green/Blue, Spectron 4 Lens, 4-8 Years Spectron 4 is a mountaineering lens, blocking 95% visible light Lite-weight and shock resistance; Excellent eye protection at an in-expensive price Flash treatment improves visible light filtering with mirror effect; Lens has anti-reflective coating to provide relief from glare 100 % A,B,C UV Protection Specially designed for kids with a Twinflex concept for better hold and comfort and Asian Fit Protective Case included