High-back chair offers a breathable mesh back that conforms to your body for more comfort. Fabric-upholstered seat is cushioned and adjusts from 18-1/14" to 22-1/12" high and from 18-4/21" to 201/6" deep. Arms are covered in polyurethane foam and adjust in height and width. The chair features synchro-tilt and a seat slide so you can find the best sitting position. 28-7/25" diameter, five-star base is made of glass-filled nylon and is equipped with 50mm hooded, dual-wheel casters for easy chair movement. Weight capacity is 250 lb.