This outdoor cushion is made in a high quality material, suitable for outside use. Besides being UV resistant, this cushion is (salt and chlorine) waterproof. The material is also mildew resistant, fire resistant and will not create those annoying little balls of fluff on the outer cover. Teflon coated (!) just wipe with a damp cloth, or throw it in the washing machine. Non-iron, fast drying. Stuffing is synthetic. Has a good standard zip.