Common fill materials shown include polyester fiber, high-resilience cotton, and polyurethane foam. Different cushion styles use different fills, so options vary by model.
Most wicker chaise lounge cushions use ties or strap-style attachments to secure the cushion to the frame. Examples in the results show string ties (often four) or integrated tie/strap features.
Listings cite protective qualities such as fade resistance, water-resistant or waterproof fabrics/coatings, mold and stain resistance, UV/weather resistance (all-weather design), and some items note tear-resistant construction.
Care varies: many cushions recommend spot cleaning or wiping clean; some specify washing with soap and water, and a few are machine washable. Several listings note removable covers for easier laundering.
Search results include both 2-piece sets (hinged seat + back) and single hinged chaise cushions. Several listings explicitly specify the number of pieces as either 2 or 1.