Herman Miller Cosm High Back Chair in Canyon with Leaf Arms, front view - Chair Dinkum Australia

Herman Miller Cosm High Back Chair Canyon with Leaf Arms

$2,990.00
/
GST included. Shipping calculated at checkout.
  • 12-year warranty, backed by Chair Dinkum
  • Delivered fully assembled
  • Genuine Herman Miller, brand new
  • In stock, ready to ship

Shipped fully assembled in protective packaging from our Sydney warehouse; open the box and it is ready to sit in. Delivery times and costs are calculated at checkout based on your location.

Change-of-mind returns are subject to our returns policy. Your rights under the Australian Consumer Law for faulty or damaged goods are separate and are not limited by it.

Chair Dinkum provides a 12-year warranty covering the frame, mechanism, gas lift, base, armrest structure and suspension materials, for 24/7 use. This chair is a genuine Herman Miller product supplied as an international parallel import, so warranty support is provided directly by Chair Dinkum in Sydney rather than through Herman Miller's registration process. Full terms are on our warranty page.

This warranty is in addition to your rights under the Australian Consumer Law. Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure.

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Instant Comfort, No Adjusting

12-Year Chair Dinkum Warranty

Frame, mechanism, gas lift, base, arm structure and suspension materials, covered for 12 years of 24/7 use and handled directly by us in Sydney.

Delivered Assembled

Your Cosm arrives fully assembled in protective packaging. Open the box, place it at your desk and sit down. No tools, no instructions.

Nothing to Set Up

Auto-Harmonic Tilt sets the recline to your body on its own. Seat height and a tilt limiter are the only controls, so the chair is right for whoever sits in it next.

Auto-Harmonic Tilt

Sit Down. That's It.

Most task chairs ask you to learn them: tension, tilt, depth, lumbar, arms. The Cosm was designed by Studio 7.5 in Berlin to skip that. Its Auto-Harmonic Tilt reads your weight and posture and balances the recline for you, so a 55 kg person and a 110 kg person get the same feeling of support from the same chair without touching a knob.

Lean back and it gives with you and holds; lean in to the desk and it follows. Herman Miller describes it as instant, automatic and balanced, and that is what it feels like from the first minute, which is why it works so well at desks that more than one person uses.

Herman Miller Cosm high back chair in Canyon with Leaf Arms, seen from behind with a woman seated at a timber desk by a window - Chair Dinkum Australia
Herman Miller Cosm high back chair in Canyon with Leaf Arms on a rug beside a timber desk in a sunlit apartment office - Chair Dinkum Australia
Intercept Suspension

One Continuous Form

The seat and back are one continuous elastomeric form that Herman Miller calls the Intercept suspension. There is no seam or gap where the back meets the seat, so support runs unbroken through the lumbar, the place most chairs leave to a separate pad.

It is breathable and temperature-neutral, and it conforms to whoever is sitting in it. The high-back version carries that support to the shoulders, and the dipped-in-colour finish means the suspension, frame, arms and base are all the one Canyon red.

The Details

Five Things That Make It a Cosm in Canyon

Designed by Studio 7.5 in Berlin to be the task chair you do not have to learn. This listing is the high back with Leaf Arms in Canyon: Herman Miller's red dipped-in-colour finish over frame, suspension, arms and five-star base.

Herman Miller Cosm high back chair in Canyon with Leaf Arms, seen from behind at a timber desk by a window
01

Auto-Harmonic Tilt

The recline sets its own resistance from your weight and posture, so there is no tension knob to turn. A 55 kg person and a 110 kg person get the same feeling of support from the same chair.

Herman Miller Cosm high back chair in Canyon with Leaf Arms beside a timber desk in a sunlit apartment office
02

Intercept Suspension

The seat and back are one continuous elastomeric form, breathable and temperature-neutral, with no seam or gap where the back meets the seat. Support runs unbroken through the lumbar, and the high back carries it to the shoulders.

Herman Miller Cosm High Back Chair in Canyon with Leaf Arms, front view
03

Leaf Arms

A wide, softly firm cradle for the elbows, angled and tucked back so the arms clear the desk edge rather than hitting it. They are fixed height, in keeping with the rest of the chair.

Herman Miller Cosm high back chair in Canyon with Leaf Arms at a timber desk in a home office
04

Dipped in Canyon

Canyon is Herman Miller's red, and on the Cosm it is a dipped-in-colour finish: frame, suspension, arms and five-star base all in the one hue, so the chair reads as a single sculptural object rather than a mesh on a black frame.

Herman Miller Cosm chairs in Canyon red, a mix of low and high backs, at shared bench desks
05

Two Controls, Nothing Else

Seat height and a tilt limiter are the only adjustments on the chair, so it is right for whoever sits in it next. That is what makes it work at a desk more than one person uses.

The Numbers

Seat Height
38–54 cm
Seat Depth
40 cm
Back Height
77 cm (high back)
Weight Capacity
159 kg (350 lb)
Chair Weight
15.9 kg
Warranty
12 years, Chair Dinkum

The figures here are Herman Miller's published specifications for the Cosm high-back chair, converted from inches by us and rounded to the nearest centimetre. The product photograph is the chair we sell; the shared-desk photograph shows Cosm chairs in Canyon in both low and high backs. This chair is a genuine Herman Miller product supplied as an international parallel import, so the 12-year warranty on it is provided by Chair Dinkum in Sydney rather than by Herman Miller — see our warranty page.

Herman Miller Cosm high back chair in Canyon with Leaf Arms at a timber desk in a home office - Chair Dinkum Australia
High Back, Leaf Arms, Canyon

This Model

This listing is the Cosm high back with Leaf Arms in Canyon: the full-height back, Herman Miller's red dipped-in-colour finish over frame, suspension, arms and five-star base, Auto-Harmonic Tilt, tilt limiter and seat height adjustment. Leaf Arms are fixed-height cradles, angled and tucked back to clear the desk edge.

It is a genuine Herman Miller product, brand new, supplied as an international parallel import. That describes the supply route, not the chair: the cover on it is our own 12-year Chair Dinkum warranty, handled in Sydney, rather than Herman Miller's.

Features & Specifications

Key Features

-Auto-Harmonic Tilt: the recline sets its own resistance from your body and posture, with no tension knob to turn
-Intercept suspension: one continuous elastomeric form from seat to back, breathable and temperature-neutral, with no gap at the lumbar
-High back for full spinal support, in Canyon dipped-in-colour: the frame, suspension, arms and base in the one hue
-Leaf Arms: a wide, softly firm cradle for the elbows, angled and tucked back so they clear the desk edge (fixed height)
-Seat height adjustment and tilt limiter; the only two controls on the chair
-Glass-filled polypropylene frame, polyester elastomeric suspension, aluminium five-star base, nylon castors
-Rated for users up to 159 kg (350 lb)
-Designed by Studio 7.5, Berlin; introduced by Herman Miller in 2018
-Delivered fully assembled

Downloads

Dimensions

Overall Height114–131 cm
Overall Width68–74 cm
Overall Depth68 cm
Seat Height38–54 cm
Seat Depth40 cm
Seat Width52 cm
Back Height77 cm (high back)
Weight Capacity159 kg (350 lb)
Chair Weight15.9 kg
ArmsLeaf Arms, fixed height
ColourCanyon, dipped-in-colour
Warranty12-year Chair Dinkum warranty, 24/7 use

Dimensions, weight, capacity and materials are Herman Miller's published figures for the Cosm high-back chair (hermanmiller.com specifications page, store.hermanmiller.com and the Cosm product sheet), converted from inches by us and rounded to the nearest centimetre. Warranty is Chair Dinkum's; see our warranty page.

Frequently Asked Questions

Almost nothing, which is the point. Herman Miller's Auto-Harmonic Tilt reads your weight and posture and sets the recline resistance itself, so there is no tension knob. The two controls you do have are seat height and a tilt limiter for how far back the chair will go. Sit down, set the height so your feet are flat, and the chair does the rest. It suits shared desks and anyone who has never got on with a chair full of levers.

Yes. It is a genuine, brand-new Herman Miller Cosm, supplied as an international parallel import, which describes the supply route rather than the product. Because it is sourced outside Herman Miller's authorised Australian channel, serial registration with Herman Miller is not available and Herman Miller's own warranty does not apply. The cover on it is our own 12-year Chair Dinkum warranty, handled here in Sydney; full terms are on our warranty page. Your Australian Consumer Law rights apply in addition.

Chair Dinkum provides a 12-year warranty on all Cosm chairs we sell. This covers the frame, tilt mechanism, gas lift cylinder, base, armrest structure, and Intercept suspension under normal commercial use (8 hours per day, 5 days per week). If any covered component fails within the warranty period, contact us directly and we will resolve it.

Seat height runs from 38 to 54 cm, the seat is 52 cm wide and 40 cm deep (the depth is fixed on the Cosm), and Herman Miller rates the chair for users up to 159 kg (350 lb). The high back adds full upper-back support; at 15.9 kg the chair is light for its class. If you are tall, short or unsure, you are welcome to sit in one at our Pyrmont showroom; call 02 9640 0642 first so we have one on the floor.

No, and that is by design. Leaf Arms are a fixed-height cradle for your elbows, angled and tucked back so they slide under most desk edges rather than hitting them. If you need arms that move, Herman Miller also makes the Cosm with height-adjustable arms, but that is a different configuration from this listing; ask us and we will tell you honestly whether it is worth waiting for.

Canyon is Herman Miller's red, and on the Cosm it is a dipped-in-colour finish: frame, suspension, arms and base all in the one hue, so the chair reads as a single sculptural object rather than a mesh on a black frame. Herman Miller's other dipped-in-colour hues are Glacier (light blue) and Nightfall (dark blue); we list the Glacier high back separately. Colour is the only difference; the mechanism, suspension and dimensions are identical.

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