The sensitivity of young eyes requires extra protection against harmful ultraviolet rays. Sunbelt Kidz Optix are designed and tested to the most stringent standards, which assures maximum protection. Polycarbonate Lenses, 100% UVA-UVB Protection, ANSI Z80.3 certified. Frames are engineered to fit contours of young faces. Durable and safe materials. ASTMF963 test compliant, 16CFR 1303 test compliant.