Check the listing for details. Herman Miller Mirra 2 Chair -Open Box - ( aeron ) adjustable. Condition: New – Open box. Listed at 399.11 USD. Mirra Chair 2 - Adjustable by Herman MillerPossibly the most comfortable chair today, the Mirra Mirra Chair-Highly Adjustable by Herman Miller takes a giant leap into the future with its automatic shape adjusting technology. The pliable elastic Tri-Flex back, supports the entire spine and conforms to size, posture, and movements. Only a few simple seating adjustments fine-tune the fit and feel.The PostureFit camber shape at the base of the back promotes a healthful and comfortable support to the lower back below the beltline.The Mirra is a design that was achieved with international cooperation by Herman Miller and Studio 7.5, a German design firm. It’s also certified, 96% recyclable and 42% fabricated with material derived from recycled resources.STOCK PHOTO. Only features listed will be included with the chair.Features:Foam-Free Under Mesh SeatAdjustable Arms /PivotingTension ControlTri-Flex Polymer Back Support with Fully Adjustable Lumbar Support/UpholsteredAireWeave Suspension Follows the Contours of the Body and Provides Aeration5-Star Base - Option of Standard Carpet Casters, Hard Floors or Deep Carpet CastersWeight Capacity - 300 Lbs.Slate Grey Minimal Assembly RequiredOverall Dimensions:Overall Size - 41.75-43.75" H x 27" W x 17" DSeat Height - 16-20.5" H