Croakies Unisex Adult Terra Floater Eyewear Retainer 80% Nylon/ 20% Rubber Made in US 77%RUBBER 21%NYLON 2%PLASTIC Buoyancy level to Float a Plastic Frame and Glass Lens or Metal Frame with Plasitc Lens. Tough woven climbing rope. Colorfast, Washable, Air Dry, No Bleach USA