ergonomic office chair
https://ergonomicofficechairnews.almoheet-travel.com/how-to-choose-an-ergonomic-office-chair-that-actually-supports-your-back
I finally swapped out my old dining chair for this ergonomic office chair and my back feels so much better after a long workday. The lumbar support is adjustable and the mesh back keeps me from getting sweaty, even when I'm in back-to-back meetings. It rolls quietly on the floor, which is a nice bonus.