Polyester HIGH QUALITY MEMORY FOAM: Our pads are filled with high quality memory foam that fits your body to reduce pressure on the hips, tailbone and lower back. The pads distribute weight evenly to relieve minor aches and pains. Microdot non-slip backing to keep the cushion secure: These cushions have a microdot non-slip backing to ensure it wont shift, move or slide. This anti-slip technology holds the cushion firmly in place on the chair, allowing for perfect placement. Perfect for dining rooms, living rooms, kitchens, offices, dens and any indoor seating. Our chair cushions are available in a variety of sets that will work well with any home decor. Perfect for office chairs, kitchen chairs, rocking chairs or any seat that needs extra padding. DURABLE DESIGN FOR LONGER LASTING COMFORT AND STYLE: Low quality cushions will flatten over time. The cushions are completely tufted to prevent clumping and keep the cushions more fulfilling over time. Not to mention, their stylish style keeps your upholstery up to date Chair cushions are easy to care for with a simple spot clean: simply treat stained areas and spot clean with mild detergent and cool water or hand wash. Chair cushions should be thoroughly dried before being put back on the furniture or floor. Do not bleach. Chair cushions are easy to care for and require only a simple spot clean: treat only the stained areas, spot clean or hand wash with mild detergent and cool water. Chair cushions should be thoroughly dried before being put back on the furniture or floor. Do not bleach. LET IT BREATHE: Memory foam takes 4-6 hours to expand to 90% and may take another 4-6 hours to approach full expansion, especially if it is cold outside and memory foam likes warm room temperatures. It is recommended to wait 24 hours before sitting on it, but if you cant do that, dont worry. The memory foam will soften during this time, at which point the item will no longer be hard or uncomfortable to sit on.