Haworth’s Lively Task ergonomic chair comes standard with features such as pneumatic seat-height adjustment, which can raise the seat height from 16" to 21", an upright back lock for users who sit straight up when they work, and a Tension Back to provide lumbar support. Optional features include seat-depth adjustment and four-dimensional arms. The chair can be fully upholstered in one of the nine Tension-Back fabric colors, or in one of the numerous fabrics Haworth offers. • haworth.com