LUXEMOME Ergonomic Design Gel Memory Foam Seat Cushions 100% Memory Foam Imported Ultra premium memory foam layered with soothing gel technology provides ultimate support and comfort. Designed to relieve pain and tension from the lower back, coccyx (tailbone), hip, spine, and sciatic areas. Promotes good posture, spine alignment, and healthy weight distribution for hours of comfortable. Zippered, washable velour cover for easy cleaning. The non-slip bottom keeps the seat cushion in place on any surface.