Sitting for long hours at work or in the car? This memory foam seat cushion is a game-changer. The U-shaped design takes pressure off your tailbone (coccyx) and provides support where you need it, helping with sciatica, back pain, hip soreness, leg numbness, and hemorrhoid discomfort. It's made from high-density memory foam that contours to your body but doesn't flatten out. The cover is breathable mesh PU leather with six side ventilation holes to keep you cool, and it's removable with a smooth zipper for easy washing. The bottom has a non-slip surface so it stays put on your chair. It measures 18 x 15 x 3.15 inches and fits most office chairs, car seats, gaming chairs, and wheelchairs. A great gift for anyone who spends a lot of time sitting. Comfortable, supportive, and built to last.