This stool has a frameless 3D Intelligent® Suspension back that allows freedom of movement, while providing targeted back support and moving heat away from the body. The suspension is supported by a Y‑Tower®. The chair has an upholstered seat with foam padding and passive Posturefit® back support. The synchronous tilt provides continuous balance and lets the body recline naturally, pivoting at the ankles, knees, and hips. The stool has a 5‑star chrome base, adjustable seat-depth, adjustable arms, tilt limiter, adjustable lumbar, and fully adjustable arms. The stool adjusts from 23.5″ – 33.5″ high.