If you are looking for an office chair that will give you perfect posture, look no more. The Aeron Office Chair – Size C, Carbon is an “ergonomic workhorse” with its PostureFit SL technology, enabling you to sit chest open, shoulders back and pelvis tilted slightly forward. Aerons pads add a high level of stabilization and lumbar support for the spine. Its breathable 8Z Pellicle suspension seat and back make 8 zones of varying tension, making it no question as to why this has been Herman Miller’s best-selling office chair more than 20 years after its debut. Size C, finished in Carbon.