Universal Fit: This outdoor lounge cushion features a seat size of 44 × 21 × 3 in / 1117.6 × 533.4 × 76.2 mm and a backrest size of 28 × 21 × 3 in / 711.2 × 533.4 × 76.2 mm, designed to fit most standard lounge chairs. It offers full-body support and lasting comfort. For optimal fit, please measure your chair before purchase. Thick, High-Density Foam: Filled with 28D high-resilience foam up to 3 in thick, our chaise lounge cushion is soft, supportive, and quickly rebounds after use. Whether you're relaxing for hours or moving it frequently, this outdoor furniture cushion stays plush and supportive. Tip: Allow 24 hours after unpacking for full expansion. Water-Resistant & Fade-Resistant: Crafted from premium polyester fabric, cushions for lounge chairs resists water and fading—ideal for outdoor use. Whether under direct sunlight or in light rain, it stays in great shape for long-term enjoyment. Thoughtful Details: The outdoor chair cushion features adjustable shoulder straps and anti-slip ties for easy, secure positioning. The hidden zipper and double-stitched edges enhance durability and sealing—keeping out water and dust. Lightweight and portable for comfort wherever you go. Versatile Outdoor Use: Our chaise lounge cushions is ideal for patios, gardens, poolside lounging, or relaxing on a deck. Wherever you are, this cushion adds comfort and style to your outdoor living space.