Review on 💺 BackJoy SitSmart Posture Plus: Seat Cushion for Lower Back Pain Relief, Improved Posture & Comfort - Ideal for Car Seats, Office/Outdoor/Desk Chairs - Portable, Durable EVA Foam - Waterproof - For Adults (Black) by Teambringit Truitt

This simple little piece of plastic literally saves lives. I have bad posture and sitting in an office chair for more than 10 hours a day doesn't help. I also have sacroiliac joint dysfunction and after sitting all day every day I can often barely move. I have lived with this pain for over 20 years. The doctors were useless. I was willing to try anything, and damn I'm glad I took a chance with that rear seat cushion. I have a feeling that "cushion" might not be the best word to describe this item as "cushion" usually means something soft. So if you're mainly looking for a seat cushion, this isn't it. It's a hard plastic with little flex or flex. I use it on my office chair and it supports the backs of my thighs and positions my sacroiliac joints properly instead of letting them sag and cause excruciating pain. Because of this, a stronger plastic is needed to provide adequate support. I will continue to use this product for the rest of my professional life.