ERGONOMIC EXECUTIVE OFFICE CHAIR: Ensures the perfect balance of ergonomic comfort, maximum support, and easy customization to offer exceptional seating for any office, at-home work desk, executive suite, dorm room, or just about anywhere PADDED SEAT AND MESH BACK: Seat is made from durable yet ultra soft Authentic TEMPUR material and upholstered in a stylish black fabric, and the chair features a breathable mesh back for a comfortable sit all day CUSTOMIZABLE COMFORT: Pneumatic seat height adjustment ensures you have a proper seat at your desk, and the adjustable tilt tension knob and lock-out feature ensure customized positionings BUILT-IN LUMBAR SUPPORT: Easily move the lumbar support up and down to create the perfect, much-needed lower back support (lumbar support height adjustment range is approximately 2") 360-DEGREE SWIVEL AND SMOOTH-ROLLING CASTERS: Five-star heavy-duty base with 360-degree swivel and dual-wheel casters that rotate easily allows for smooth mobility around the office and supports up to 275 lbs. Experience the comfort you deserve every work day with the Tempur-Pedic ProTask Executive Task Chair. This swivel office chair ensures the perfect balance of ergonomic comfort, maximum support, and easy customization to offer exceptional seating for any front office, at-home work desk, executive suite, dorm room, or just about anywhere. The seat is made from durable yet ultra soft Authentic TEMPUR material and upholstered in a stylish black fabric, and the chair features a breathable mesh back for a comfortable sit all day. Packed with user-friendly features, the pneumatic seat height adjustment ensures you have a proper seat at your desk, and the adjustable tilt tension knob and lock-out feature ensure customized positionings. Plus, you can easily move the lumbar support up and down to create the perfect, much-needed lower back support (lumbar support height adjustment range is approximately 2"). The five-star heavy-duty base with 360-degree swivel and dual-wheel casters that rotate easily allows for smooth mobility around the office and supports up to 275 pounds. This Greenguard Certified ergonomic office chair measures 40.16"-43.5"H x 25.69"W x 26.56"D overall with a 19.06"-22.44"H x 19.59"W x 16.53"D seat size and 25.59"H x 19.28"W back size.