[paulmay]

Our team has been using Ideon's SitOnIt TR2 task chair for many years and it's a great chair. Before we moved to this chair, I'd been sitting on Herman Miller chairs and I had significant back pain. It's been much better since we moved to the TR2. The mid-back version is what we use. We get the multi-function add-on for it as well (seat back tilt, tension control, back height adjustment).

https://chairbuilder.sitonit.net//#Task/TR2/_/config

The prices listed on their website are much higher than you'll pay if you buy through a store that offers workplace design services. Finding a place that sells them was way harder to figure out then it needed to be, but we finally figured out that the best way to do it was to contact the sales rep for our region. You can find the rep for your region on this page and they'll point you to a retailer.

https://www.sitonit.net/contact/replocate.html