This simple device, makes almost any chair more comfortable. A wire frame is covered in a mesh fabric. It gives excellent lumbar support, but is not as hot as a pillow would be. I take it with me everywhere. It fits in comfortable chairs like the one you see here, but it also fits over the back of wooden chairs.
There's nothing wrong with my back, and I'd like to keep it that way, by always sitting comfortably.
I was at the Starbucks a couple weeks ago, when I saw a woman constantly repositioning herself in her chair. I asked if she had back pain and she told me she was in a car accident two years ago and has suffered continually since then. She tried out my back rest and it gave her a great deal of relief. We tried it on a wooden chair and on the chair pictured. It worked great on both chairs and she said she would immediately buy one. The next time I saw her, she told me that she bought 4, of two different sizes. One set is for home and one for the car. --- She has had a physiotherapist for two years. They have never tried to find something this simple to alleviate discomfort. These things cost less than $10 at office supply stores. I told her to give her physiotherapist a slap for me.
If you're not comfortable in your seating position, I assume that that means you're not doing your back any favors. This device along with choosing the best chair , can go a long way to alleviating pain and preventing unnecessary fatigue.
Last week , I did a job that involved the digging up and movement of approximately 15 tons of soil and rock. At the end of the day, I used my back rest. I also made sure to sleep in a comfortable position and to get enough sleep. Now, two days after completing this Herculean task, I feel like a new man who could do it all again tomorrow.