This kneeling chair uses a bentwood birch frame to hold your hips higher than your knees, which opens up the angle at your hips and takes pressure off your lower spine compared with sitting flat in a regular desk chair. Two-inch foam padding cushions both the wider hip seat and the knee rest, and the design is meant to encourage a straighter back and shoulders over time, easing the discomfort that builds up from long stretches at a computer. A rocking function built into the three cross bars lets you shift and rebalance instead of locking you into one rigid posture, and anti-slip strips on the base keep it from sliding on hard flooring. Rated to support up to 220 pounds, it is sturdy enough for larger users, and it goes together with minimal setup for use as a desk chair, meditation seat, or computer chair at home or in the office.