Herman Miller Mid-Back Cosm Office Chair in Graphite

£938.00 *inc taxes

*inc. VAT
Back Support: Auto-Harmonic Tilt
Tilt Option: Auto-Harmonic Tilt
Seat Depth: Fixed Seat Depth
Arms: Fixed Leaf Arms

Back Suspension Finish: Intercept™ Suspension Material in Graphite
Armpad finish: Intercept™ Suspension Material in Graphite
Frame finish: Graphite
Chassis finish: Graphite
Base finish: Graphite

Castors: Suitable for Hard Floor/Carpet

15 in stock (can be backordered)


Due to Covid-19 we can’t guarantee any delivery times. We estimate a 5 day lead time.

Delivery to mainland UK addresses can be calculated during checkout.

Sit in Cosm, and you just might forget you’re sitting in a chair at all. Its sophisticated ergonomic design sets a new bar for instant, personalised comfort, no matter who sat in the chair before you, how long you’ll be in it, or what you’ll be doing. The designers at Berlin-based Studio 7.5 knew, even when working on predecessors like Mirra, Setu, and Mirra 2, that the ideal chair would provide a smooth feeling of natural balance.


A tilt is to a chair what a transmission is to a car, and like transmissions, some are manual, and others, such as Cosm’s, are automatic. With other self-adjusting models, the chair forces the body to conform to the tilt’s movement. 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.

Mid Back Chair

Full Height: 980mm – 1140mm
Seat Height: 417mm – 531mm
Seat Width: 678mm – 744mm
Seat Depth: 394mm

Additional information

Weight 20 kg
Dimensions 74 × 74 × 112 cm

Carpet Castors, Hard Floor Castors

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