Humanscale World LM Task Chair

The chair uses your own body weight as a counterbalance to determine the tension of the recline. As you lean back, the mechanism automatically adjusts to provide the right amount of resistance, eliminating the need for manual knobs or levers.

Yes, the tri-panel design is engineered to mimic the human spine. It stretches in three different directions to provide consistent, firm lumbar support without requiring manual adjustments.

Yes, the World LM is available in an all-mesh configuration or with an optional contoured foam seat. The foam option is generally recommended if you prefer a slightly softer feel or need additional pressure relief for your thighs.

The chair does require assembly upon arrival. While the process is straightforward, you will need to attach the base, cylinder, and seat components, so plan for a few minutes of setup time.

The seat height is adjustable from 16.7 to 21.5 inches, which accommodates a wide range of heights. However, if you are exceptionally tall or short, you may want to measure your current chair's height to ensure this range meets your needs.

Yes, the chair features adjustable Duron arms. Because they are attached to the backrest rather than the seat, they move with you as you recline, ensuring your arms remain supported in a consistent position.