The NOVA Happy Tush Gel Cell & Memory Foam Seat Cushion makes every seat — office chair, car seat, bleacher, kayak — the most comfortable place you've sat all day. Why choose between gel or foam when you can have both? A 1" gel-cell layer redistributes pressure and promotes circulation, while a 1.5" high-density foam base delivers the structural support that keeps you comfortable for hours. Together they create a 2.5" profile that contours to your shape — no flattening, no bottoming out. The cushion rolls and folds compactly with a built-in carry handle , and the water-resistant core handles indoor and outdoor use equally well. The zip-off polyester cover is machine washable, and the non-slip PVC bottom keeps it locked in place on any surface. Dimensions: 16.5" W x 16.25" D x 2.5" H. Latex-free. Sit and be happy.