Memory foam seat cushion features an ergonomic design to promote healthy posture, improve circulation and provide tailbone and lower back support. High-density memory foam provides professional structural support that will maintain its shape use after use whether you are sitting in the office, at home or in the car. Its durable material maintains its thickness, keeps its seams intact and provides support beyond 80,000 uses. Anti-slip backing prevents sliding using a high-quality silicone friction grip so you can sit with confidence. The soft mesh cover with a built-in carry strap removes easily for quick cleanings as needed.