Aeron PostureFit

PostureFit is an ergonomic device available as an option on the Aeron chair. It is made up of 3 elements:

  • Butterfly pad
  • Wishbone frame
  • Adjustment knob
The butterfly pad is the central element of the device. It’s what supports the pelvis, allowing it to sustain a forward rotation, keeping it from rolling backwards into the void. It works in conjunction with the Pellicle suspension of the Aeron chair, molding to the user's contours to provide custom-fitted support. Unlike traditional lumbar where more support means more pressure, PostureFit offers gentle support, marrying to the contours of the body. In fact, you may not realize it is there until you take it away!

The wishbone frame and the adjustment knob work together to control the degree of support the user requires. The wishbone frame also holds the butterfly pad in place and its shape complements the lines of the Aeron chair, enhancing its design. Like the Aeron chair, it is available in three sizes: A, B and C.

How does it work?
The butterfly pad is a flexible material that provides a third dimension to the pellicle, adjusting to the contours of the user’s lower back, filling the void between the chair and the user. It provides gentle support to keep the pelvis in its natural, forward position to maintain the natural curves of the spine. This works because the pelvis is rigidly attached to the base of the spine so it is the pelvis that determines your spinal alignment.

It addresses the root of the problem – the position of the pelvis.

What about lumbar support?
Traditionally, lumbar support has been the solution for back support. This approach addresses the symptom – the lumbar region of the spine bending outward – by using pressure to attempt to force the back into its natural posture. This often meant more pressure equaled more support. Lumbar support can’t do what PostureFit can because it doesn’t fill the void between the user and the chair. It won’t provide the custom-fitted support of the lower back, below the beltline, (sacral area) that PostureFit can.

The Benefit
PostureFit helps to ensure good seating posture. Body weight will be balanced on the skeletal structure, as nature intended. This reduces the workload on muscles, enhances blood circulation throughout the body, and relieves pressure on the spinal discs and diaphragm, which improves breathing and helps prevent fatigue.

Slouching, or poor posture, causes the spine to go out of alignment. Muscles must then hold up the extra weight not supported by the skeleton. Poor posture places more pressure on the lower back, especially the discs that make up the spinal column. This results in backaches, headaches, and other uncomfortable symptoms, which can lead to more serious and chronic lower back problems.

By filling the void between the lower back area, below the beltline, and the chair with custom-fitted support, PostureFit addresses the source of many back problems – the backward rotation of the pelvis, which results in unhealthy posture. Supporting the healthy, natural forward tilt of the pelvis, PostureFit enhances comfort by achieving proper spinal alignment.

PostureFit Availability:
All PostureFit sizes are available for immediate shipment.

Shipping Information:
$9.95 in Continental U.S.
International charge is $35, may be higher in outlying regions.


PostureFit Frequently Asked Questions --
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