Built with a number of comfort features the Matrex Leather Chair with Headrest is hard to beat. The top grain leather seat and headrest are both multi-adjustable. A pneumatic seat height adjuster is mounted on a metal base - most office chairs are pr edominantly plastic. Even the padded arms can be adjusted to your specifications. The seat and back are linked together by a unique 2-to-1 synchro tilt that moves the back at twice the angle of the seat. The tilt tension can be adjusted or locked f or individual user weights and strengths. This way you can lean back significantly with a seat relatively parallel to the floor but angled enough to keep you from sliding off during late afternoon secret siestas