Julbo Kid's Solan Sunglasses Spectron 3+ lens is a polycarbonate lens that blocks 88% of the visible light. Lite weight but with excellent shock resistance, this versatile lens is suitable for all types of activities Flash treatment improves visible light filtering with a mirror effect on the lenses Like all Julbo lenses, the Spectron 3+ lenses are optical category 1 100 % A,B,C UV Protection Flexible plastic frames and rubber temples adapt to any face shape Grip tech inserts at stem ends for comfort and hold Does not stick to hair!