Bloc Eyewear Daytona Shiny Black Sunglasses (Blue Mirror/ Cat 3 Lens) Description: The ideal partner for any demanding activity engineered to enhance performance & provide total protection. Conforms to EU Standard BS EN 1836: 2005 + A1:2007 Lens: BLUE MIRROR CAT.3 Karbon 8 Optical Class One lens provide MAX UV protection. Distortion free & virtually indestructible. Frame: BLOC frames utilises tough & compliant KARBON TX Percent bi core injection frames & are hand finished. They are flexible lightweight & designed for comfort fit & performance. The sports hinge offers both strength & performance. The hypoallergenic nose pads & non-slip hypoallergenic temple tips are designed for comfort & fit.