The chair is designed for smaller stature folks maybe best for kids under 5 ft. 10 in. The back although advertised as adjustable is not because of a higher tension spring adjuster than is necessary so adjusted to its least resistance it is still too stiff to lean back. The headrest is not adjustable to accommodate a larger (greater than about 6 ft. tall) individual and cuts into the shoulders. I will pass this to one of my kids but cannot use it myself. I do not recommend this chair to anyone over 6 ft. in stature.
So many of these office chairs are designed for a big man. This one is for the medium to smaller adult person. I am 5'5 and my son is 5'9 both are medium weight and short waisted. This chair fits us perfectly. Great lumbar support built into the chair in back of the mesh. The headrest is very adjust able by tilting it. It's the first office chair I have had where the head rest will actually supports the base of my neck. The chair can be adjusted to rock or not. Also reclines back half way. So comfortable to watch TV with feet up. We have 3 of them in the house now. I am a fan of the mesh chair as they breath. Avoid this chair if you have a wide hip area. The arms will not adjust far enough out for you to sit comfortably. The Max arm distance width is 18".