Low-Back Cosm Chair



Designed by Studio 7.5

The Low-Back 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. With dipped-in-color, Cosm can come in one hue from top to bottom.

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Low-Back Cosm Chair

Low-Back Cosm Chair

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Item Number: 100114976

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Item Number: FLC142SFPG1G1G1BKS84501
Low-Back Cosm Chair


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Packaging Type:
Packaging Dimensions:
26" x 21.75" x 33.75"
Package Weight:
Low Back: 40 lbs.
Assembly Required:
Care and Maintenance


With regular care and maintenance, your Herman Miller product will provide many years of superior performance and satisfaction. To maintain quality, please follow the cleaning procedures outlined here.

The instructions for the care and maintenance of Herman Miller products are provided to you as a service. No warranty is implied since results may vary.


Frame, Base, and Standard Armpads

Normal cleaning

Wash surface with a soft cloth soaked in mild detergent and warm water. Rinse thoroughly and dry with a soft cloth. 

Do not use solvents or abrasive kitchen cleaners.

Suspension Material

Normal cleaning

Vacuum fabric as needed using an upholstery attachment. Vacuuming picks up dust and reduces the need for professional cleaning. 

Do not brush fabric or use a vacuum attachment with a rotary brush. Brushing may permanently damage the nap or change the character of the fabric.

Spot Cleaning

Immediately soak up the stain with a soft absorbent cloth.

Do not dry the stain completely or it may set. The longer a stain is allowed to remain on a fabric, the more difficult it is to remove.

Water-based stains such as coffee, soft drinks, fruit juices, or milk

Use a water-based cleaner (specifically made for cleaning fabric) or a solution of mild (alkaline) warm soapy water (not overly soapy) applied with a damp clean cloth or sponge. Work the cleaner into a lather or foam.

Never use hot water; it will set the stain. Avoid scrubbing.

Oil-based stains such as lipstick, grease, or salad dressing

Use a dry cleaning solution applied with a damp clean cloth or sponge. Test the cleaning solution on a small, concealed area first. If there is no spotting, ringing, or damage to the fabric or its dyes, apply the cleaning solution to the soiled area with light, quick strokes. Begin at the outside of the stain and work toward the center, being careful not to over-saturate the fabric.

K2R is also a product that can be used. See product label for complete instructions. Do not over apply water or any liquid solution to fabric. Excessive wetting of the fabric with any liquid solution may result in permanent damage to the material. Do not rub too vigorously or you may damage the nap of the fabric or break fibers. Several light applications are better than one heavy application. Soak up all remaining solution and then use another clean cloth or sponge dipped in cool water to remove any residue. Let fabric dry thoroughly and then vacuum well before using. If the stain resists cleaning, contact a professional cleaner.

Large Areas

If large areas are soiled, contact a professional cleaning firm.

User Adjustments
Total Height 34-40.6"
Width 26.7-29.3"
Depth 26.7"
Seat Height 14.8-21.4"
Seat Width 20.5"
Seat Depth 15.9"
Arm Height 7.3"-11.7"


0 reviews Be the first to review the Low-Back Cosm Chair
3.0 / 5.0
2 Reviews
5 Stars
4 Stars
3 Stars
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1 Star
Not bad but not for me
I am giving this a one rating, not because it is bad, in fact I think its the most attractive office chair available. However when I went to test it out (mid height), it did not provide any lower back support. I have had two surgeries. I currently use a 20 year old Aeron Chair. I needed a less obtrusive chair for an apartment. I tried the Setu (the rep said it was either going to be a Aha moment or I would not like it). It was an Aha moment and it works well for me. Chairs are very particular to the person. I wish for the simple design of the Cosm Chair it worked, but it did ot.
April 20, 2019
Response from Herman Miller
We're sorry to hear that the Cosm chair didn't work out for you but so glad to hear you are enjoying your Setu chair!
April 22, 2019
Stephanie S
Everything we wanted
Where do you start. We wanted an office chair for home that did not look like an office chair but provided the support of a chair like Aaron. The Cosm does it all for me. It looks great, and I look forward to sitting in it every day. It is so comfortable you forget you are sitting in a chair.
Everything the designers say about the chair is true.
February 5, 2019

Product Q&A

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Browse 3 questions Browse 3 questions and 3 answers
Is this product available in custom colors? Will be any other colors available in future?
Atreides on May 6, 2019
Best Answer: The Cosm chair is available in six colors: Studio White, Canyon, Glacier, Graphite, Carbon, and Nightfall. There are not currently plans for additional colors.
Is the "studio white/mineral" color white or grey? It looks like white in one of the photos but grey in the other.
Colleen R on Mar 29, 2019
Best Answer: The Studio White / Mineral frame has both white and grey. The base and the fabric will be grey. All the plastic components will be white.
How much weight can this chair hold?
Jay R on Feb 8, 2019
Best Answer: The Cosm chair is tested and warranted for use by users 350 pounds or less.