Herman Miller Sayl: $735 at Herman Miller Employing a stiff, perforated back similar to the Mirra 2, this seat is a great mid-back if you like shifting from side-to-side while you sit. The concave ...

The Autonomous ErgoChair Ultra 2 tries to thread the needle with a more modest price at $599, and it has some of the trappings of a fancy office chair thanks to its peculiar support system. But it ...