C Shaped Cushion is a seat cushion that significantly reduces low back pain and buttock pain. It is great for people suffering from conditions that cause buttock pain and pelvic pain like coccydynia, sciatica, pudendal neuralgia, piriformis syndrome, lavator ani syndrome, etc. C Shaped Cushion is great for anyone experiencing buttock pain and low back pain, people who sit for long periods of time like drivers, and office workers and anyone who wants to enhance their sitting experience. It is one of the best cushions available for chronic buttock pain. It is made from the high quality foam. The top is made from a dense, medium firm foam, and the base is made of a dense and firm foam. The cover is easily removable for washing.