About Size : Seat cushion: 44L 21W 3H inches, Back cushion: 28L 21W 3H inches. To get the right outdoor lounge chair cushion, please measure the seat size of your outdoor furniture before ordering, we offer two sizes, size S (72"x21"x3") and size M (80"x26"x3"), universal size fits most outdoor lounge chairs, please choose the size that best suits you Fade Proof Waterproof Fabric: The chaise lounge cushion cover is made of 300GSM breathable polyester fabric, which is thick, wear-resistant, soft and skin-friendly. The solution dyeing technology allows each cushion to withstand 2000 hours of sunlight without fading, maintaining its bright appearance season after season, saving you money. The inner layer of the waterproof cover is PU coated to create an all-round waterproof effect. High Quality Rebound Foam: Thickened 35D powder free high density foam is durable and highly elastic, which can effectively absorb body pressure, provide ergonomic softness and excellent comfort, the lounge chair cushion is vacuum compressed, after receiving it, please leave it for 48-72 hours to allow the lounge chair cushion to expand naturally and return to its best condition. Upgraded 2-in-1 multifunctional headrest: The velcro pillow is filled with enough soft polyester fiber filling to provide extra comfortable head support, and you can use it as a lumbar pillow to meet your different needs.