VITRA Oson S Chair - Mod Livin'

Oson is a new family of office chairs. It reflects the latest technological developments and introduces a new, organic shape to the workplace. The chair automatically adjusts the backrest tension to accommodate the user's weight and sitting position. All Oson's functions are clear and intuitive - making it simple to adjust. In fact doing so is fun, as all the levers are soft to touch and easy to find. The outstanding elements are the aluminium mechanism beneath the seat and the organically shaped backrest frame, which holds the very flexible backrest and links it to the mechanics. Together, they control the synchronized movement of seat and back; the backrest slides up and down the frame, and offers perfect support in all positions.