Passive ergonomics with hip-pivot; seat remains stationary while the back adapts to your body movement. Fixed metal tube arms have polypropylene padding for comfort. Polyester upholstery has stain-resistant protection to maintain a like-new appearance. Five-star base with casters for easy mobility. Seat/Back Color(s): Burgundy; Features & Functions: 360° Swivel; Hip Pivot Motion; Pneumatic Seat Height Adjustment; Tilt Lock; Arms Included: Yes; Recommended Applications: Task, Multi-Task & Task Intensive.