The Float Neck Cord Vision is designed for anglers who wear their polarized sunglasses all day and want to minimize the risk of losing them. The built-in floats keep the frames afloat if they fall into the water, which is useful whether you’re wading, using a float tube, or fishing from a boat. The cord fits most frames, so the accessory isn’t limited to a single model of sunglasses. It simply attaches to a pair of existing sunglasses and secures gear that’s frequently handled. It’s a small accessory, but its value becomes clear as soon as you’re out on the water.