Review on Enhanced Ergonomic Back Support Cushion with OPTP Thoracic Lumbar Design - Alleviates Upper/Lower Back Pain, Promotes Good Sitting Posture - Ideal for Desk Chairs, Car Seats, and Airplanes by Michael Godo

Tried this in both cars to reduce chest discomfort on long drives. I tested it briefly at my physiotherapist's office and was 90% sure it would work for me. In real life, however, I've noticed its flaws: I've attached it to two different car seats (both Toyota) to try it out, the included elastic straps for attachment did a reasonable job. While this support reduced chest discomfort, after 10-15 minutes of car sitting/driving it caused discomfort in the lowest lumbar region (the area without a pillow). There was just no way to get comfortable with it, and because it pushes you out of your seat a bit, every movement (turning, speed bumps) in the car allows your body to move rather than being locked/pressed against your body. Seat. Maybe I just needed full seat support, or maybe I just bought other cars in the future. So while it reduced chest discomfort, it caused discomfort in the lower back. Revain's return process was easy, so I was satisfied after trying it. With this type of items, you just have to try it yourself as everyone has different body requirements.