The Portable Gel Seat Cushion provides a soft, supportive layer between you and any hard seating surface. The portable seat cushion has a memory foam base which spreads your weight evenly while relieving stress in your spine and backside. In addition, this cushion was intelligently designed with a center grove which elevates the tailbone. This eliminates actual surface contact with your tailbone which reduces spine pressure. This product features an ergonomic design that guides your lumbar curvature while you're seated so you don't experience fatigue or discomfort. The Portable Gel Seat Cushion is perfect for travel or any situation where you need additional seating support. This product is also known as the Gel Seat Cushion.