InCharge Black OfficeThe elegant InCharge Black Office work chair was designed by Nanna Ditzel in 1993. The design is functional and timeless to suit both the modern and future work place. The model is identical to the InCharge Office model, with the exception of the black frame. The philosophy behind Nanna Ditzel's design is based on human anatomy and the idea of being active and strengthening the body through natural balance, even when sitting down. The chair itself