Cover fabrics are most commonly olefin or polyester; a few listings use cotton or recycled polyester. Fillings include generic foam, higher-density foam/sponges (often noted as 28D), polyurethane foam, polyester fiberfill, and high-resilience cotton.
Many listings advertise water- or water-repellent fabrics and overall all-weather performance. Common protective features include waterproof or water-resistant covers, UV/fade resistance, and—on some products—mold and stain resistance.
Most cushions have zippered, removable covers (often with a hidden or smooth zipper) for easier removal. Cleaning instructions vary by listing: many recommend spot-cleaning or wiping, while some removable covers can be hand-washed or machine-washed—check the product details for specific care instructions.
Cushions are usually vacuum-compressed or vacuum-sealed for shipping. After unpacking they typically begin to expand within a few hours, with full rebound commonly taking anywhere from about 2 hours up to 24–48 hours depending on the filling.
Common attachment methods include ties, rope belts, and adjustable non-slip straps. The exact method varies by product listing.
Listings typically offer multiple color options to match outdoor decor and emphasize fade resistance. Some products note UV treatment or solution-dyed olefin for improved fade and wear resistance.