We prefer office mess chairs to office leather chairs. The mess materials allow better air circulation if you have to sit a little longer especially on warm days.
It's only been 11 months and the mesh seating is already starting to tear. At first I needed a chair for the hot sticky days and the mesh assures that nothing will stick to any exposed skin and that my behind doesn't generate the usual heat from sitting on the average chair leaving it at a cooler temperature. But I'm a heavy guy at 270lbs so the "hammock" is already starting to sink to the bottom of the seat.
This is the chair I've been looking for. It is one of the best Christmas presents ever! (From my dear hubby). I spend a lot of time on the computer and my back no longer hurts when I get up. Fits me perfectly!