Adjustable to the extreme, the Steelcase Leap makes it easy to find a comfortable sitting position no matter what size you are, reviewers say. Customizable lumbar support and a flexible seat back minimize aches and pains, allowing the seat to move with the user’s spine. The Steelcase Leap comes with a limited lifetime warranty.

An icon of modern design since its introduction in 1994, the Herman Miller Aeron is still a top pick for its breathable, high-quality mesh and customizable features, reviewers say. It gets particular raves for comfort over long work sessions. The chair is available in three sizes, making a perfect fit easy to achieve, and it comes with a 12-year warranty.

The Raynor Eurotech Ergohuman LE9ERG offers all the ergonomic adjustments a worker could want, with the added luxury of leather upholstery, reviewers say. The high seat back and headrest make it a particularly good choice for taller workers, but is a comfy choice for any frame. It comes with a lifetime warranty.