Not very impressed with this chair and too much trouble to send it back. First, the factory installed tilt mechanism doesn't work. Secondly, the height from the floor to the lowest level down my feet don't reach the floor. I am 5'2. The breathable mesh is rough on your skin. I have to push myself all the way to the back of the chair to feel the lumbar support. The nylon rollers keep moving you around. You cannot adjust the arms in closer to you body. The seat cushion is comfortable. Seems like this is built for the Green Giant!!! Not very comfortable for me!!!