Designed to provide maximum comfort, the Phantom properly supports your posture, weight and lumbar while sitting. The Phantoms mesh back and seat provide fully body support, keeping you cooler than other upholstered chairs. Made to suite a wide variety of body types, workstation set ups and tasks by adjusting to each individual user. Ergonomics begins with adjustability. The Phantom allows you to adjust the chair height so your feet are flat on the floor, hips aligned, arms at desk height while providing the proper lumbar support. The chair back moves and glides with you throughout the day, keeping your spine in alignment and supporting the lower back.