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Made to order

The Herman Miller Cosm Designed By Studio 7.5

2019 Herman Miller receives a Red Dot Best of the Best Product Design Award in the “Office Chairs” category

Sit in the Cosm, and you just might forget you’re sitting in a chair at all. Its sophisticated ergonomic design instantly responds to your body, movement, and posture to provide natural balance and total support. No matter who sat in the chair before you, how long you’ll be in it, or what you’ll be doing, Cosm gives you a new experience of comfort – anywhere you work.



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Product Details

The Cosm’s ergonomic design instantly responds to you providing the balance and support you need and a feeling of weightlessness that might make you forget you’re sitting in a chair at all Cosm instantly responds to your body movement and posture delivering a completely new comfort reference.  Cosm’s Auto-Harmonic Tilt puts the person first and responds to them – no matter their posture – providing a balanced recline and personalised comfort. Studio 7.5 and Herman Miller perfected the self-adjusting tilt by inventing and engineering a complex finely tuned mechanism. Accounting for the sitter’s vertical force the gears within the tilt move the fulcrum along a leaf spring to automatically adjust the tilt’s tension.

Cosm has achieved Ergonomics Excellence certification from FIRA  in addition to BS EN ISO9241-5:1999 and BS EN 1335 Part 1

High Back

Leaf Arms

Studio White Frame

Studio White Chassis

Mineral Base

Mineral Intercept Suspension Material

12 Year Warranty

Sizing/Assembly & warranty Information

  • Assembly
    Fully Assembled
  • Warranty
    12 Years
  • Seat Height Range
    Height 1143-1311mm
  • Seat Pad Dimensions
    Width 521mm x Depth 404mm
  • Overal Dimensions
    Height 1311mm x Width 734mm x Depth 678mm
  • Back Height
  • Maximum User Weight
  • Country of Origin



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Delivery & Returns Information


Our standard delivery time on all orders FROM STOCK we aim to Deliver within 3-5 working days  (unless otherwise stated) MON- FRI  8AM TO 6PM and is  FREE OF CHARGE to mainland UK for all orders.

* Excludes the Scottish highlands which is chargeable.

If the item is ( Made to Order) you can find the lead time under the Add to Basket Button (these are as accurate as possible)

Products showing PRE ORDER are items we have coming back in to stock and the dates are on the product pages. When you buy a pre order item it is reserved and when it arrives with us we ship it on to you please allow 3 working days after date shown for delivery.

We also ship to NI, ROI and the Channel islands also Mainland Europe.

For more information, please visit our dedicated Delivery Information page.

Easy Returns

All items listed as in stock can be returned or exchanged easily. The item must be in the original packaging and in New Condition and unused! You have 14 days from the date the item was received. We can arrange the return for you.

Please advise of the order No, address and contact details in the email sent to logistics@officechairsuk.co.uk.

For more information, please visit our dedicated Returns, Exchange & Refunds page.

Key Features

1. Auto-Harmonic™ Tilt The tilt instantly and automatically provides balanced support and movement, depending on your body and posture. 2. Intercept Suspension Breathable and temperature-neutral, the continuous form of this elastomeric suspension eliminates the gap between the seat and back, conforming to each person’s body to provide dynamic spinal support. 3. Flexible Frame The thin but strong frame feels nearly non-existent and offers support while flexing so you can comfortably move your upper body. 4. Dipped in Colour Cosm is available in one hue from top to bottom to further cement the unity of the design and the sculptural quality of the chair. 5. Leaf Arms Leaf Arms provide a large, comfortable resting place for your elbows. 6. Additional Arm Options Cosm is also available with height-adjustable arms, fixed arm, or without arms.