Regular eyewear retainers are good, but if you're going to be in the water you'll definitely want a floating one. The Croakies Terra Floater easily adjusts to fit your head, accommodates most frame sizes, and floats for peace of mind at the beach, in your kayak, or on your SUP. Made from high quality neoprene. Unique back stitch prevents thread failure. 2 inches of adjustment at the temple lets you get the perfect fit. Bright red color makes it easy to find in the water. 17 in. long, 1.75 in. wide. Machine washable.