The Alera Etros Series Mid-Back Mesh Swivel/Tilt Office Chair (model ALEET42ME10B) is a professional-grade ergonomic chair designed for all-day comfort in office and conference room settings. The breathable mesh back promotes airflow to keep you cool during extended use, while the generously padded mesh seat provides lasting cushioning and support.

The chair features adjustable lumbar support for personalized back comfort, fixed padded arms for stability, and a pneumatic seat height adjustment that ranges from 17.75" to 20.25". The tilt lock mechanism lets you secure your preferred recline angle, and 360° swivel rotation allows you to reach all areas of your workspace without standing. The heavy-duty nylon five-star base with dual-wheel hooded casters rolls smoothly across a variety of floor surfaces.

Overall dimensions are 23.625" wide by 23.25" deep, with an adjustable height of 36.375" to 40". The seat measures 20.375" wide by 19.875" deep, and the back measures 18.875" wide by 20.625" tall. Supports up to 275 lbs. Meets ANSI/BIFMA standards for safety and durability. Assembly required. Includes a five-year limited manufacturer's warranty.