Herman Miller Aeron Onyx Executive Office Chair - Size B

In Stock & Fast Delivery Dispatched in 1 - 3 days


As low as £1,299.00 £1,082.50 Regular Price £1,499.00

The Aeron Onyx chair from Herman Miller is now available to order in an executive finish. This finish features a polished base and chassis with all the specifications you need to get the chair comfortable and stylish.

Customize Herman Miller Aeron Onyx Executive Office Chair - Size B
B - Medium   + £0.00 £0.00
Fully Adjustable Including Depth   + £0.00 £0.00
Adjustable PostureFit SL   + £0.00 £0.00
Tilt Limiter + Forward Tilt   + £0.00 £0.00
Universal Castors (For Carpet & Hard Floor)   + £0.00 £0.00
Vinyl   + £0.00 £0.00

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Herman Miller Aeron Onyx Executive Office Chair - Size B
Herman Miller Aeron Onyx Executive Office Chair - Size B

In stock

The Aeron Onyx chair from Herman Miller is now available to order in an executive finish. This finish features a polished base and chassis with all the specifications you need to get the chair comfortable and stylish.

£1,299.00 £1,082.50

Buying for a business?


    Herman Miller

    Since its introduction nearly 30 years ago, Herman Miller Aeron's legacy of innovation and sustainability continues. In terms of material creation and ergonomics, it set a new standard. The Aeron Onyx is made of materials that have been recycled more than half of the time. Herman Miller has now added ocean-bound plastic to the chair, diverting more than 150 metric tons of plastic from the ecosystem each year. That amounts to 15 million water bottles made of plastic.

    Onyx is a stunning new colourway that we are also adding to Aeron. Aeron is boldly updated to Onyx, resulting in a high-contrast appearance that immediately stands out. Current design trends influenced the dramatic, ultra-matte black shade. 1.13 kilograms of ocean-bound plastic will be part of Onyx.

    • Size B in the new Onyx black colourway
    • Polished aluminium frame and base
    • Full specifications
    • Dual Posturefit lumbar support
    • Forward tilt and tilt limiter
    • Fully adjustable armrests
    • Carpet castors or hard floor castors

    Brand new and comes fully assembled. Available for delivery in 1-3 days within 50 miles of London. Orders outside of the M25 may take longer. Additional delivery charges apply for orders to the Isle of Man and Scotland, please call us on 020 3475 5317 for a quote.

    More Information
    Assembly RequiredNo
    Warranty12 years, 3 shift warranty
    Boxed Weight22kg
    Box Dimension68 x 68 x 107cm
    Product WeightSize A - 18.6kg
    Size B - 19.5
    Size C - 20kg
    Backrest Height480mm
    Backrest Width376mm
    Backrest Recline Angle90° - 101°
    Back Tilt Angle86°/91°/116°
    Base Diameter655mm
    Armrest HeightAdjustable Armrests - 172 - 274mm
    Fixed Armrests - 198mm
    Seat Height365 - 495mm
    Seat WidthSize A - 480mm
    Size B - 514mm
    Size C - 549mm
    Seat DepthSize A - 400mm
    Size B - 431mm
    Size C - 470mm
    Seat Tilt Angle-4°/1°/15°

    Aeron size chartThe New Herman Miller Aeron Remastered comes in three different sizes.

    To ensure you get the most benefits from the Herman Miller Aeron chair, we advise to follow the recommendation chart before ordering:

    Size A

    For heights between 1.47-1.75m and weights between 40-68Kg

    Size B

    For heights between 1.58-1.98m and weights between 59-148Kg

    Size C

    For heights between 1.60-1.98m and weights between 81.5-159Kg

    Need More Chairs?

    If you are in a company or an office that requires more chairs, Let us know. No matter how small or large the project, Back2 is always happy to support your requirements.

    You will get expert advice from our highly-trained consultants on products, set-ups and the best quote on bulk orders. 

    Contact us on 020 7935 0351 or fill in the form here.

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    All products with delivery times stated are estimates. All deliveries are made within business days (Monday - Friday). No delivery takes place on Saturdays, Sundays and bank holidays.

    The stated 1-3 days delivery time refers to orders within 50 miles of London only. Orders outside of the M25 may take longer.

    Additional delivery charges will apply for orders to Northern Ireland, the Isle of Man and Scotland. Please call us on 020 7935 0351 for a quote.

    Most smaller items are kept in stock and available for dispatch as soon as we can process your order. For larger items and bespoke orders, the lead times are longer as we have to acquire these items, especially for your order. Orders placed before midday (Monday to Friday) for items in stock are usually dispatched the next working day.

    On Delivery

    Please be certain to check the goods on delivery. In the case of signing for goods, you should sign as “damaged” or “unchecked” if the parcel shows any signs of damage or tampering. If the goods are to be signed for and the damage is very severe please reject the item which will be returned to us by the courier. You should also let us know what has happened.

    If you do not discover the goods are damaged until you unpack them please let us know immediately, and certainly no more than 48 hours later.

    If you are out when delivery is attempted, a card should be left by Royal Mail or a courier, advising you where to collect the item in the case of Royal Mail, or other delivery arrangements by courier. Often a courier will make a second delivery attempt the following day. Otherwise, they may ask you to call them to re-arrange delivery. If you are not available at all to take delivery the item will be returned to us.


    We have a 14 days return policy. If you are unhappy with the product, please contact us on 020 7935 0351 or email us at [email protected] within 14 days of your purchase to initiate your return. returned products must be in their original packaging and saleable condition, without any marks from use.

    Made-to-order items (bespoke, items we do keep as stock, etc) are acquired specially for your order. For this reason, these products cannot be returned. Please make sure you are satisfied with the items before placing your order.

    Please note that there is a collection charge if you wish us to pick up the item. The charge will depend on your distance from our London warehouse Alternatively, You will need to arrange for a courier or postal service to deliver the item back to us at your own cost. Please note you will be responsible for the item until we can confirm receipt at our premises. For this reason, we recommend using a trackable service provided by almost all postal and courier services. Alternatively, you can arrange to return items to be picked up by us (subject to collection charge)

    In some instances returns can also be made through either of the following options:

    • Simply take the proof of purchase and the product you wish to return or exchange to our showroom at 40 Half Moon Crescent, London N1 0TJ.
    • Within the M25 we may be able to arrange collection for large items such as office chairs and desks at an additional charge. Please contact us to find out if we can do so.

    Faulty Items
    If for any reason you feel the item you have received is faulty please contact us as soon as possible to let us know that the item has a fault. We will request that you explain to us what the fault is and in some instances, we will request that you send us photos of the fault so that we can see the fault described. Once the fault is identified we will ask you to return the item and provide a replacement. If a replacement is unavailable (whether it be due to discontinuation or end-of-line clearance), we will either replace it with a similar product or provide a full refund. If you are returning an item because it is faulty we will reimburse your return costs once we have inspected and confirmed the item has a fault.

    If you wish to return an item to us for any other reason such as our fourteen days returns policy (on certain products only) please contact us to inform us that you would like to return an item and the reason for the return. We will give you an address to return the goods. Please note that you must include the original receipt with the item so that we can identify that the returned product is from your order along with the reason for the return (you can write this on the receipt if you wish). Failure to do so may mean we are unable to identify who the return is from and we will be unable to process the return.

    Return Exceptions
    We regret that, for hygiene reasons, we are unable to accept the return of mattresses, pillows and personal items such as eye masks. If the product was sealed by the manufacturer and the product remains unopened with the sealed packaging intact we are willing to accept returns. This is standard practice for most companies retailing these types of products.