Ergonomic Office Seating

Herman Miller COSM Chair High Back Leaf Armrests

★★★★★ View customer reviews

$2,499.00 $2,999.00

In stock • Ships in 24–48 hours

Color Glacier

Glacier Canyon Mineral Graphite

In stock & ready
to ship

Delivery across
Australia & New Zealand

Try it at our Sydney &
Melbourne showrooms

Genuine product · local
warranty & support

🚚

Australia Wide Delivery Fast and reliable delivery

★

Highly Rated Verified customer feedback

🛡

Quality Warranty Long-term peace of mind

Melbourne & Sydney Showrooms Purchase with confidence

Key Features

The Herman Miller Cosm is a chair well known for its innovative design and ergonomic features. The chair is designed to automatically adjust to the user's body movements, providing support and comfort without the need for manual adjustments. It is often praised for its sleek and modern appearance, as well as its functionality in various work environments.

Warranty

All of our products are accompanied by an official invoice. Kindly preserve the invoice as your documented proof of purchase, essential for any warranty claims.

Delivery

Pickup is available by arrangement in Melbourne, Brisbane and Sydney. Please contact us for pickup locations and arrangements. Delivery is also available for an additional fee. Contact us for a delivery quote.

Every detail matters

Comfort in Every Curve Leaf Arms

Cosm’s Leaf Arms cradle your elbows with a broad, softly supportive mesh surface, offering a comfortable resting place as you work, read or pause.

Breathable by Design

Airy suspension mesh meets a smooth Glacier finish, combining an open, lightweight feel with a calm, coordinated look.

Find Your Colour

Choose from Graphite, Mineral, Glacier and Canyon to complement your space, with the same sculptural high back and distinctive Leaf Arms.

The Structure Behind the Comfort

A closer look at Cosm’s sculpted frame reveals the curved supports and connection details behind its flowing silhouette.

See It in Action

Product Overview

Specifications

Dimensions

Trusted by our customers

Customer Reviews

Frequently Asked Questions

Does the Cosm High Back need manual adjustment? +

You can adjust the seat height to suit your desk and sitting position. The Auto-Harmonic Tilt automatically adapts recline resistance to your body and posture, so there is no manual tension setting to fine-tune.

What is the benefit of the Cosm High Back? +

The taller backrest extends support further up your back, making it a good option if you prefer more upper-back coverage when reclining. Its breathable mesh seat and back form a continuous surface that moves with you as you change position.

Are the Leaf Arms adjustable? +

Leaf Arms have a fixed position and do not offer manual height or width adjustment. Their curved mesh surfaces provide a broad resting area for your elbows. When choosing your chair, consider how the arm height will work with your desk and preferred sitting position.

Does Pro Furniture deliver across Australia? +

Yes. Pro Furniture delivers to Melbourne, Sydney, Brisbane and many regional locations across Australia. Delivery cost and timing depend on your postcode—contact us for a quick quote.

Can I try the chair before buying? +

Yes. Pro Furniture offers local inspection and trial options at selected locations. Please contact us before visiting the showroom so our team can confirm availability and arrange the trial for you.