Thick sponge cushioning and a breathable linen seat help you stay comfortable while you work or get ready, with a 20 x 16 in seat sized for everyday use. The 15.5-19 in adjustable seat height is controlled by a side lever, so you can raise or lower the chair to match your desk or vanity. A gentle 15° rocking function adds relaxed movement during long sessions, while the armless design lets you pull in close and save space. A sturdy metal base with five nylon casters supports up to 250 lbs and rolls smoothly for easy positioning.