Senator Ousby is the most organically shaped ergonomic mesh back chair. Ousby has created the material to be light and airy for the user and creates great comfort and how supportive it is. Senator Ousby adapts cleverly to your natural movements and has simple controls that are easy to find, understand and use. Choosing Refurbished Chairs: Our chairs are fully tested, and we love bringing these back to life with it being fully steam cleaned. Parts remain: The arms, castors and base may show signs of wear and tear. This will not affect the functionality of the chair.