Sitting for long hours? This Foamma gel-infused memory foam cushion is here to save your back and keep you cool. It's 3 inches thick and measures 21 by 21 inches—a great size for dining chairs, office chairs, wheelchairs, or even car seats. The top layer is ventilated gel memory foam that helps regulate temperature and relieve pressure points, while the bottom 2 inches are firm high-density foam for solid support. It's CertiPUR-US certified, meaning it's made without harmful chemicals and has low VOC emissions. Made in the USA and designed to last 7-10 years. Note: This is just the foam insert—no cover included. When it arrives, it'll be compressed in a box; just let it expand for a few hours. Whether you're at your desk, at the dinner table, or on the road, this cushion adds comfort where you need it most.