Cover fabrics mentioned in listings include olefin, polyester (including Oxford fabric, which is 100% polyester), and solution-dyed fabrics. Some cushions also note a TPU composite coating or similar treatment for added water resistance.
Typical protective features found in listings are water-resistant or waterproof surfaces, weather-resistant construction, and UV/fade resistance. Some listings additionally note mold-, stain-, or tear-resistance and mention a TPU composite coating for extra water protection.
Cushions are secured to chairs using methods such as tied straps or ropes, elastic back straps, and multi-strap designs that wrap around the chair to help prevent slipping.
Most product listings show sets that include two cushions. Product details frequently indicate "Number of Pieces: 2" or "Set includes 2."
Common designs include square seat cushions, segmented high-back cushions with separate headrest/back/seat sections, tufted finishes, and long bench-style Adirondack pads designed for loungers or loveseat benches.
Many cushions are vacuum-packed for shipping and will need time to expand after unpacking. Recovery times vary; one listing advises waiting about two hours or more for the cushion to regain shape and suggests using a hair dryer to speed the process in that specific case.