Bloc Eyewear Pacific T Shiny Black Sunglasses (S15 Grey/ Cat 3 Lens) Description: A classic shape with a slightly heavier feel. This lens shape also helps to protect the sensitive skin around the eyes. Conforms to EU Standard BS EN 1836: 2005 + A1:2007 Lens: S15 Grey Cat.3 Karbon 8 optical Class One lens provide MAX UV protection. Distortion free & virtually indestructible. Frame: BLOC frames utilises tough & compliant KARBON TX core injected frames & are hand finished. They are flexible lightweight & designed for comfort fit & performance. The optical class hinges offer both quality & durability.