I started off with a rolled up towel held by some rubber bands that worked fantastic. However, it would shift whenever I moved in my chair. I read about the McKenzie method and was so exited to try out the roll. Pulling it out of the box, my thoughts were it looked too small and too soft. While it does get the job done, I can stop thinking how this could have been improved. They solved one problem by offering a firm density options.<br />These are the problems I found in the first 15 min of use: 1. The roll is not wide enough for men (I’m 6 feet with a 34”waist), 2. It too soft and flattens out with moderate to heavy pressure. I find this happening in the car more than an office chair. In fact, the shape of the roll is becoming distorted due to the soft material, 3. The belt clip does not securely hold the belt tension. I have to constantly retighten the latch. At this point, I’ll stick to my rolled up towel for the chair and my mesh back support for the car.
Rating: [2 of 5 Stars!]