The Mesh Back Chair in the Regular/Average size provides balanced comfort and ergonomic support for most users. Its 20″ W x 19″ D seat pan offers a comfortable, standard fit, while the breathable mesh back (19.75″ W x 23.5″ H) delivers cooling airflow and natural spinal alignment throughout the workday. Height- and width-adjustable arms can also be removed when a more open seating setup is preferred. The chair’s 17.25″–20″ seat height range supports proper posture at standard desk heights, and the sturdy 28″ base and smooth casters for carpet or hard floors ensure stable mobility. With durable construction supporting up to 300 lbs, this chair delivers everyday ergonomic performance in a classic, versatile size.