What sets the “Verté Seating Office Chair” apart from other office chairs is that it boasts 11 separate sections that “are actually torsion spring-loaded bearing joints, capable of taking an exact impression of your spine.” Expect to shell out $1,500 for this gadget. Product page http://www.anthro.com/cpage.aspx?pid=220



To make said impression all you need to do is ‘unlock’ the joints with a specific lever and then lean back into the chair with enough pressure to move the springs. Once you have the back of the chair shaped into your ideal posture simply sit in it and over time ‘muscle memory’ will naturally improve your posture