Our Original "Patented" Latex Eyewear Retainer. Available in 10 colors, our most popular color... black. NECKZ qualities include ease of use, high vis colors, fun, comfortable and simple. Just one piece, no broken or missing parts to mess with and no bacterial build up or residue. Easy to attach, just wet the ends of glasses and slip em' on. As air gets trapped it helps aid in flotation. NECKZ are FDA approved and made in the USA.