Ergonomic design promotes healthy posture, improves circulation, and provides tail bone and lower back support. Premium high density memory foam provides professional structural support that maintains shape use after use. Proven Durability independently verified to provide support and maintain thickness beyond 80,000 uses. Anti-slip backing prevents sliding using a high-quality silicone friction grip. Removable cover is easily detached for cleaning. Carrying strap makes it easy to transport between home, office, car and events. Innovation, quality and trust have made Kensington The Professionals’ Choice in ergonomic accessories for more than 20 years. The Kensington Ergonomic Memory Foam Seat Cushion strikes the perfect balance between comfort and support. Providing an ergonomic design to promote healthy posture, increase circulation and relieve spinal pressure when sitting, the Ergonomic Memory Foam Seat Cushion features high density memory foam that will maintain its shape, anti-slip backing to prevent sliding, and an easy-to-clean removable cover. Features. Product type. Seat cushion. Shape. Rectangle. Filler material. Memory foam. Suitable for. Chair. Removable cover. Yes.