Memory foam is the leading fill type for any comfortable cushion out there. Whether it's a pillow, mattress topper, bed rest, or chair cushion, everyone knows that memory foam is the leader in comfortable materials. The cushions contour seamlessly to your body to help provide extra support and help soothe achy muscles,possible benefits include helping boost circulation and helping to reduce pressure on your back and tailbone.Our chair pads are designed to fit all chairs. Memory foam chair cushions measure 15.5 in. x 15.5 in. x 3.5 in. These dimensions are a perfect fit for almost all dining room, living room, play room, bedroom, and even outdoor chairs.