Herman Miller Aeron Chair with PostureFit. Size C – Large. Message to discuss availability. The item “Herman Miller Aeron Chair PostureFit Size C” is in sale since Tuesday, May 7, 2019. This item is in the category “Business & Industrial\Office\Office Furniture\Chairs & Stools”. The seller is “mr_bollinger” and is located in Hicksville, New York. This item can’t be shipped, the buyer must pick up the item.