The 9to5 Vault task chair allows users to personalize the comfort of their chairs. It has high a quality, woven tension mesh that conforms to the user’s back, following every move with support, including the lumbar region. The Vault features four ergonomically adjustable arm options, choice of three control options, K2 knee-tilt synchro control with side tension adjustment, five locking positions and a safety release lever, ratchet back height adjustment, high resilient molded foam seat, and durable black nylon base. Choose from eight mesh colors. Quick ship options are available for the fabric seat. Task stool is also available, with either a high or low seat height. Lifetime warranty on structural and mechanical components. SEE MORE TASK CHAIRS