Strong support high-density foam: enjoy enhanced comfort with outdoor chaise lounge cushions featuring 28D high-density sponge padding 3 in. thick, this quality foam provides good resilience and support, maintaining its shape for comfortable Fading-resistant and waterproof fabric: beach lounge chair cushion adopts 300gsm polyester fabric, ensure lasting color retention , color fastness can be maintained for 3 years, with durability and high color fastness, without fear of fading , 95% waterproof, which can prevent rainwater from entering and protect internal foam UNIQUE DESIGN: Outdoor lounge chair cushion is with an adjustable headrest,easy disassembly, the thickness is ergonomically designed to improve head comfort. and protect the cervical vertebra from injury.patio lounge chair cushions EASY TO FIX AND DISASSEMBLE: outdoor chaise lounge cushion equipped with 6 anti-slip straps – which can keep the cushion securely fastened to the chair,The hidden zipper design makes the outdoor lounge chair cushion easy to disassemble and wash.patio chaise lounge cushions for outdoor furniture. Tips: chaise lounge cushions waterproof is packed in vacuum due to its large size, which may cause wrinkles after long-term compression, after opening, you can put it in the sun for 2-3 days and it will return to normal thickness