Herman Miller Aeron Size B Luxury Office Chair. Classic Aeron Chair Size B. PostureFit empowers healthy posture. Patented Pellicle woven suspension textile weaves together two unique materials with elastic properties to make the seat, backrest flexible, breathable for enhanced comfort without the need for padding or traditional upholstery. Kinemat tilt mechanism allows the chair to move with your body, pivot points align with the hips, knees, ankles for a natural recline motion. Tilt limiter with seat angle adjustment. In very good condition with some visible signs of wear from previous use. Left arm rest swivel is slightly loose. PLEASE REVIEW PHOTOS for exact cosmetic condition and design details. If you do not see an item that you believe should be included please send me a message to clarify: if it is not shown in the photos then it is considered not included unless stated otherwise. Thanks for stopping by! Be sure to check out my other listings!