Work Smart Series Executive Big Man's Chair with Espresso Eco Leather Seat and Back Features: Thick Padded Contour Back with Built-in Lumbar Support / Espresso Eco Leather (-EC1) / One Touch Pneumatic Seat Height Adjustment / Locking Tilt Control with Adjustable Tilt Tension / Nylon Padded Loop Arms with Cocoa Coated Accents / Heavy Duty Cocoa Coated Base with Dual Wheel Carpet Casters / Weight limit up to 350 lbs.