SIT MORE COMFORTABLY - Best ergonomic pillow to relieve pressure & promote circulation if you suffer from lower back pain, arthritis, sciatica, a bruised coccyx, and other vertebrae issues. Also a must-have for those recovering from back surgery or a spinal injury. Excellent for promoting good posture. PERFECT FOR ANYWHERE YOU SIT - Car, office chair, living room, dining room, kitchen, patio and even your wheelchair. Great for sporting events, truck drivers, pilots, airplane travel. Also great for and pregnant women! Ultra-soft, ultra-strong, solid rubber-like Gel and Memory Foam material. Breathable gel stays cool during use!