Premium Cool-Gel Seat Cushion Cooling Fabric with Cool-Gel Core provides a certified decrease in body temperature for maximum comfort during extended periods of sitting Ergonomic Design promotes healthy posture, improves circulation, and relieves spinal pressure Zero Tailbone Pressure alleviates pressure on your spine using a unique u-shaped coccyx cutout to support sciatica relief by minimizing contact between tailbone and seat cushion Premium Honeycomb Memory Foam provides durable patent pending structural support Certified Durability independently verified to maintain thickness, provide ongoing support, and keep seams intact beyond 80,000 uses Machine-Washable Cover is easy to clean and maintains color wash after wash Anti-Slip Backing prevents sliding using a high-quality silicone friction grip Carrying Strap makes it easy to transport between home, office, car and events (POLY BAG)