Doctor Recommended Support & Comfort: Watch our video endorsement to hear why experts recommend this product. Our memory foam seat cushion offers exceptional comfort and support, reducing tailbone pain and promoting healthy posture. Ideal for long sitting sessions.100 Percent Memory Foam Cushion - Crafted from premium, 100% memory foam, this cushion guarantees lasting durability and reliable support. The memory foam offers a medium firmness of 11.24 pound-force (50 on the Shore 00 scale), making it ideal for those weighing 130 lbs or more. Dimensions: 17"x14"x2.95"Soft & Breathable Cover: Our seat cushion for car features a machine-washable, breathable cover that is easy to clean. The non-slip bottom keeps the butt pillow in place, ensuring stability and comfortPain Relief & Body Support: The ergonomic "U" shape cutout minimizes tailbone and lower back pain, supporting spinal alignment and enhancing comfort while minimizing gravity's impact on the spineVersatile & Durable: Ideal for of