Altogether I can say: These days I go to Yoga only for fun, not anymore because of my back pain. I don’t have it anymore even if I am sitting every now and then for more than 10 hours in a row on the Salli Swing. Which is actually good: The chair activates and encourages you to stand up every once in a while. It is also just impossible to “twine” the legs in an unhealthy way around the chair like I always used to do while sitting on other chairs. I can fully recommend the Salli chair!