UBooty pillow is moderate support Bbl cushion is maximum support . Both pillows and back support contain high quality upholstery foam and poly fill. Fade, Stain fade and water resistant with Velcro attachments. We offer our maximum support bbl cushion with non slip bottoms in a 4 inch height for weight 150lbs or less, 5 inch height up to 180lbs, and a 5.5 inch for over 180lbs. Designed for comfort and durability!