Bloc Eyewear Hawkeye Black Sunglasses (VE5 Vermillion/ Cat 3 Lens) Description: The Hawkeye is a classic design equally at home on the mountain or on the street. Conforms to EU Standard BS EN 1836: 2005 + A1:2007 Lens: VE5 VERMILLION 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 core injected frames & are hand finished. They are flexible lightweight & designed for comfort fit & performance. The sports hinge offers both strength & performance.