The warranty is valid for 24/7, round the clock use. While all three chairs offer tremendous value for the money, that independently adjustable upper and lower back support feature impressed us. It can support users up to 300 pounds, but from our experience it’s most comfortable for short and average in height people (up to 6 ft tall). We chose to order the size B for testing so the specs provided below are for the size B. This chart applies to New Aeron chairs with the extended-height-range pneumatic height-adjustment cylinder. Since the B-size chair is designed to fit a broad range of people, Herman Miller recommends it for users who fall in the A/B or B/C category. The Aeron Chair is available in the sizes A, B and C. To illustrate the sizing: Size A is with circa 104cm roughly 10cm smaller than size C. Also the width of the seat differs in 7cm. Buy Herman Miller Classic Aeron Chair - Fully Adjustable, C size, Adjustable PostureFit, Carpet Casters: Home Office Desk Chairs - Amazon.com FREE DELIVERY possible on eligible purchases The Aeron is available in 3 sizes: A, B and C. A is small, B is medium and C is large. This chart applies to Classic Aeron chairs with the extended-height-range pneumatic height-adjustment cylinder. Currently Herman Miller offers over 15 different models of desk chairs, but here we will focus on TOP 4 Herman Miller chairs, which are the most popular and in my opinion the best ergonomic chairs from this brand: Herman Miller Embody, Herman Miller Aeron, Herman Miller Sayl and Herman Miller Setu. The size A version is covered for 300 lbs. One big difference between the Aeron and Gesture is that the Aeron was designed with different size options, while the Gesture is available in one size only. C. This is the large size and it will fit more people than B will, but if you’re tall, there can be cut-off under the thigh area where you need some support. Aeron desk chairs can come fully loaded with forward and backward tilt action, or alternatively, just backward tilt. Sizes B and C are covered for people up to 350 lbs. The size A version is covered for 300 lbs. There are no parts on the chair that are excluded from the 12 year period. capacity. Aeron (Left) vs Gesture (Right) Specs. To tell the size of your Aeron chair just feel underneath by the embossed Herman Miller logo: 1 dot is A; 2 dots is B; 3 dots is C With this in mind, Herman Miller designed the Aeron Chair in three different sizes. The size A is tested and warranted up to a maximum of 300 lbs. Herman Millers's official sizing chart for the Aeron chair is filled with gray areas, requiring you to eventually have to find a selection of their chairs to sit in to determine which size is the best. Instead of an Aeron chair design serving in a one-size-fits-all capacity, it is sold in three sizes – "A" small, "B" medium and "C" large – to fit different body types. To tell the size of your Aeron chair just feel underneath by the embossed Herman Miller logo: 1 dot is A; 2 dots is B; 3 dots is C After checking endless chairs to replace my old cheap no-name, I decided on an Herman Miller Aeron Remastered. Herman Miller Aeron Chair – Size B. Created Date: The “B” and “C” Aeron chair weight limit is 350 lbs and the “A” Aeron chair weight limit is 300 pounds, so height is definitely more significant of a factor to consider when choosing the size of the chair. Herman Miller > Aeron Chair size guide » Herman Miller Aeron Chair main page Herman Miller Aeron chairs are available in three sizes: A, B and C. For most people, size B is the most appropriate chair.