The chair was purchased for my husband whose 5’6” and it adjust to fit him perfectly. The seat depth of most of the standard office chairs are too deep and therefore lacks good back support. The head rest is also just perfectly positioned so his neck is well supported. My son whose 5’10” bought this chair several months ago and recommended it to us because its adjustable features makes it suitable for people of all sizes. I’ve tried it out and am thinking of buying one for myself … I’m 5’ tall/short.