Built to withstand a range of climates including hot sun, snowy winters, and strong coastal winds. Polywood lumber is a proprietary plastic containing recycled milk jugs and detergent bottles. Weatherproof. Will not splinter, crack, chip, peel, or rot when exposed to the elements. Easy to store. Folds flat for easy transportation and storage. Comfortable. Contoured to provide the comfortable seating expected of adirondack chairs.