Olefin Generously sized 20” x 40” x 3.5” dining chair cushion includes one seat and back cushion with a square shape designed to fit most standard dining chairs, providing added comfort with thick padding for a more luxurious outdoor dining experience. Solstice Olefin Fabric – Provides maximum protection against premature fading offering dependable value and durability for everyday outdoor use with a 5-Year prorated warranty. 3.5" thick Memory Foam fill provides a comfortable supportive feel. Designed with a discreet zipper, the cover is easy to remove and clean—simply wash and air dry to keep your cushions looking fresh and effortlessly refined. Fabric ties keep the cushion securely in place for long-lasting comfort, while the rolled front design and waterfall edge add a touch of timeless style. Cushions are vacuum packed and may take 48 hours to fully expand and regain their original shape. Foam inserts and covers are packed separately, designed for hassle-free assembly.