The Ebern Designs Folding Adirondack Chair is made from recycled milk jugs & detergent bottles and carry a level of purity over 99% HDPE. It will not deteriorate from moisture, insects, splintering or warping. Stainless steel fasteners with a 316-grade, is used in all our furniture to ensure optimum durability & we use only high color UV stabilizing color, which minimizes material breakdown from prolonged sun & weather exposure. All these wonderful, attributes make this furniture essentially maintenance free. It requires no waterproofing, staining, or other recurring maintenance. An occasional soap and water washing will keep this furniture lasting a lifetime! Not only is it made from recycled milk jugs, but it is recyclable itself. Our Ebern Designs line comes with a lifetime warranty for residential use and 5-year limited warranty for commercial use. Cushions are also available.