SimplePosture uSeat&trade; - Tailbone Cushion - Memory Foam Coccyx Cushion Custom Designed For Immediate Tailbone & Lower Back Pain Relief - Now With Improved Ergonomics & Upgraded Memory Foam RELIEVES TAILBONE AND LOWER BACK PAIN - The unique U-shape cutout allows your tailbone to suspend naturally which relieves pain and pressure from your tailbone and lower back when you sit! PROMOTES CONFIDENT HEALTHY POSTURE - The uSeat helps promote the natural arc in your spine so you can maintain healthy vibrant posture all day! REBOUND MEMORY FOAM WON'T FLATTEN - Our proprietary rebound memory foam feels soft and comfy the instant you sit, yet won't flatten out with extended use! BETTER ERGONOMICS & MORE SITTING AREA - Other coccyx cushions make you feel like you're about to fall off or get your leg circulation cut off by their uncomfortable edges. We don't cut corners to save costs! The uSeat's smoother ergonomic design and wider sitting area is hands down more comfortable than other cushions. And it's still lightweight enough to take in your car, on the plane, to the office or anywhere else you go where you want to sit more comfortably. 90 DAY LOVE IT OR RETURN IT GUARANTEE - Try the uSeat risk free for 90 days and if you don't absolutely love it, then send it back in usuable form for a full refund! No other fine print. No questions asked.