HN Polarized Kiteboarding Sunglasses with blown kiteboarding carrying case. Glasses have a crystal clear lens with dark tint. Sunglasses have an attached strap that you can cinch around your head so they do not come off in the water. If by chance they do come off, the glasses float. We have tested many types of water sunglasses and these are some of the best we have seen, you will not be dissapointed.