Bloc Eyewear Navigator Gun Sunglasses (G15 Green/Cat 3Lens)Description:A classic soft aviator. A very complimentary shape.Conforms to EU Standard BS EN 1836 : 2005 + A1:2007Lens:G15 Green Cat.3 Karbon8 Optical Class One lens provide MAX UV protection. Distortion free and virtually indestructible.Frame:BLOC frames are hand finished flexible lightweight and designed for comfort fit and performance. The optical class hinges offer both quality and durability. The fully adjustable hypoallergenic nose pads are designed for comfort and fit.