Bloc Eyewear Pluto Matt Gun Sunglasses (SG12 Grey Grad/ Cat 3 Lens) Description: The Pluto is a similar shape to the square but has a heavier bridge which coupled with the free flowing temple gives it a sportier look. Good clean lines & very comfortable to wear. A style that feels at home anywhere. Conforms to EU Standard BS EN 1836: 2005 + A1:2007 Lens: SG12 Grey Graduated Cat.3 Karbon 8 Optical Class One lens provide MAX UV protection. Distortion free & virtually indestructible. Frame: BLOC frames are hand finished flexible lightweight & designed for comfort fit & performance. The spring hinge offers both quality & durability. The fully adjustable hypoallergenic nose pads & the non-slip hypoallergenic temple tips are designed for comfort & fit.