Julbo Kaiser Spectron 3 Sunglasses Mirrored Bridge: 18 millimeters Spectron 3+ blocks 88% of visible light, Lite-weight shock resistance, Flash treatment improves visible light filtering, mirror effect on lenses 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 Protective Case included