The braided polypropylene cord utilized in manufacturing the Rivera products is made of Flyer, a special yarn designed for the production of residential and contract upholstery textiles, that is ideal for outdoor use. Soft and non-pilling, it is resistant to sunlight, mold and bacteria. Made of hypoallergenic and non-toxic substances, the material has successfully passed rigorous testing of its antibacterial and antifungal properties. It offers excellent resistance to sunlight, salt water, chlorine, acids, sun screens and tanning lotions, perspiration, stains, and wear. Washable at 40° (104°f), it is colorfast and does not require ironing. It is totally recyclable and is Oeko-Tex® Standard 100 certified (tested for harmful substances).