IKEA MARKUS Office Chair

A budget chair, and an honest one about its limits. The MARKUS gives you adjustable seat height, a tilt lock and tension control for the backrest, built-in lumbar support and a tall mesh back with a head section, all backed by a 10-year limited warranty, twice the Hyken's. What it cannot do is change shape around you. The seat depth is fixed at 18 1/2 inches and the armrests are fixed in place, so it suits average-height sitters whose thighs match that seat and whose desk height lines up with the arms. If you are shorter, taller or need your elbows lower, spend more on one of the adjustable chairs further down.