Create a more relaxing office environment with this ergonomic mid-back office chair. The breathable mesh construction allows air to circulate between you and the seat back, helping to keep you cool while you work. The memory foam cushion offers added cushioning and support for all-day use, while the built-in lumbar support provides relief for sore and tense muscles. With its five-star base and rolling casters, this desk chair moves easily from your workstation to filing cabinets or printer stands. Use the adjustable arms to find the perfect height and width for your frame, and move the seat up and down with the pneumatic seat-height adjustment lever. This ergonomic mid-back office chair features center tilt, forward tilt, and tilt lock, so you can recline comfortably between projects. The task chair is a smart addition to any office space. The black mesh upholstery allows air to circulate. The mid-back design minimizes stress and strain. Overall Dimensions: 36.2-39.8"H x 26.8"W x 24.4"D Seat Dimensions: 19.7"W x 20.5"D Back Dimensions: 20.5"W x 19.9"H Width and height adjustable arms allow you to rest your forearms comfortably