This is the chair I use.
I was starting to get back and neck pain about 8 years ago and this chair basically changed my life. It feels invisible. I never feel it is pressuring me.
PS: I had no idea it is this expensive. Long story short: I bought it at production price because a company imported about thirty units for another company which went bankrupt. So the intermediate company was selling it at cost - basically half of the price on the website. But to be fair, most of us spend one third of our days on those chairs - so the investment is worth it. I have had mine for 8 years and it is still going strong.
