Modern styling, all-day comfort, and enhanced ergonomics. Ergonomically designed chair frame to help support proper posture when sitting back. Breathable mesh back for all-day cool comfort. Height-adjustable ratchet back for optimal lumbar support. Four-way adjustable arms are Height and Width adjustable, and soft arm pads Pivot in or out or at angles. Contoured molded foam seat for resiliency and comfort even when sitting all-day. Synchro mechanism with seat slider. Air mesh seat for additional breathability and cool-comfort. Recommended applications: conference, training & meeting; executive & management; general office & task; seat/back color: Black; arms included: Yes; arm style: padded t-arms.