Under the motto "less is more", the Giroflex 313 has been consistently reduced except for comfort and ergonomics. The chair series is particularly impressive thanks to the highly developed, patented Balance-Move system (synchro-mechanism with automatic weight adjustment for users from 45 - 120 kg body weight). The controls are positioned so that they are easy to reach and operate in the sitting position. The chair has a 2-zone seat. The front edge slopes forward by 7° and prevents blood congestion in the legs. The hollow-shaped rear seat area guarantees comfortable sitting with optimum pelvic support.