1. material: Highback patio chair cushions are covered with a durable outdoor polyester fabric, which is water and dirt repellent, soft and comfortable. Sweatabsorbing and breathable, it fits perfectly into any life scene. This cushion set is comfortable and durable and good for outdoor use. 2. Soft and comfortable: Highback outdoor chair cushions are filled with PP cotton, thick and not easy to deform, which has a good rebound effect and relaxes your hips. Super comfortable high back cushion specially designed for patio chairs 3. Size details: Overall dimensions: 45' L x 19' W x 4' thickness; 20' x 20' (seat), 20' x 25' (backrest). Perfect for indoor and outdoor patio chairs, Adirondack chairs, rocking chairs, patio sets, porch swings and garden furniture. These outdoor rocking chair cushions are designed for a variety of indoor and outdoor rocking chairs and provide adequate protection and improved comfort 4. Nonslip design: This replacement cushion for rocking chairs is equipped with long straps and a spring band that allows better attachment to the chair. The stitched circular ft construction prevents the cushion filling from shifting and bunching. Comfortable with patio chair combination in leisure time 5. Wide applications: With 12 colours to choose from, these comfortable patio chair cushions can be integrated into many indoor and outdoor areas. For your basket seat, dining room chairs, porch swing or porch swing. Ideal for indoor and outdoor use