Overview
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Cosm Chair

$1,745
4 out of 5 Customer Rating
Item No. 100140894
See it in 3D

Cosm Chair

$1,745
4 out of 5 Customer Rating
Item No. 100140894
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Warranty

12-year warranty
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Manufacturer SKU: FLC342SFJDR1DR1DR1O2R84506
Cosm Chair
$1,745
Details

Details

For the instruction-manual-averse, there's the Cosm office chair. The revolutionary seat combines Auto-Harmonic Tilt, Intercept suspension, and flexible frame to provide support and comfort the moment you sit — like it was made for you. This adjustable office chair comes in three sizes and arm styles so you can find your perfect fit. Or personalize it further with Cosm's unique top-to-bottom "dipped-in-color" design that comes in a range of hues to match any workspace.
  • Named one of the 100 Best Inventions in 2019 by Time magazine.
  • Provides total, weightless support – no adjustments necessary.
  • Flexible, sturdy frame instantly responds to your every movement.
  • Breathable Intercept suspension at the seat and back.
  • Swivel seat set on a smooth caster base.
  • Backed by a 12-year manufacturer’s warranty.
Brand
Herman Miller
General Dimensions
  • 40¼" H 26¾" W 26¾" D
Product Weight
35 lbs
Assembly
Comes fully assembled
Warranty
12-year warranty
Terms and conditions apply. Learn more
Dimensions
Mid Back

Mid Back

  • Height Min (in): 38¾
  • Height (in): 45
  • Width (in): 29
  • Depth (in): 26¾
  • Seat Height Min (in): 14⅞
  • Seat Height (in): 21
  • Seat Width (in): 20
  • Seat Depth (in): 15½
  • Back Height (in): 24⅛
  • Weight (lbs): 35
  • Weight Capacity (lbs): 350
Low Back

Low Back

  • Height Min (in): 34
  • Height (in): 40¼
  • Width (in): 26¾
  • Depth (in): 26¾
  • Seat Height Min (in): 14⅞
  • Seat Height (in): 21
  • Seat Width (in): 20
  • Seat Depth (in): 15½
  • Back Height (in): 19⅛
  • Weight (lbs): 35
  • Weight Capacity (lbs): 350
High Back

High Back

  • Height Min (in): 45
  • Height (in): 51¼
  • Width (in): 29
  • Depth (in): 26¾
  • Seat Height Min (in): 14⅞
  • Seat Height (in): 21
  • Seat Width (in): 20
  • Seat Depth (in): 15½
  • Back Height (in): 30¼
  • Weight (lbs): 35
  • Weight Capacity (lbs): 350
  • Injection-molded glass-filled polypropylene frame
  • Intercept polyester elastomeric seat mesh
  • Seat tilt mechanism
  • Powder-coated or polished die-cast aluminum base
  • Nylon casters for carpeted floors or quiet-roll nylon casters for carpeted and hardwood floors
  • Notification of Filling Contents
Studio 7.5

Studio 7.5

Burkhard Schmitz and Carola Zwick started their studio as a team of six in Berlin in 1992. The group was looking for the freedom to work on projects that interested them, and for the freedom to do so without bosses or titles.

More on Studio 7.5
Care & 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.

Cosm Chair Care and Maintenance Guide

Explore
A glacier mid-back Cosm Chair with height adjustable arms.
Cosm_Consumer Summer Lifestyle 2019 Shoot
Jenni Lee with Cosm Chair

Frequently Asked Questions

All configurations of the Cosm Chair weigh 35 pounds.

Herman Miller manufactures the Cosm Chair in the United States, and we operate production facilities in Michigan where the chair is assembled.

The Cosm Chair supports users up to 350 pounds.

The Cosm Chair's seat height ranges from 14.875 inches at its lowest position to 21 inches at full extension across all three back height options. This 6.125-inch adjustment range accommodates users from approximately 5 feet to 6 feet 4 inches tall when paired with standard desk heights.

The Cosm requires minimal adjustment compared to traditional ergonomic chairs. The primary control is the seat height lever located beneath the right side of the seat. Pull the lever upward while seated to lower the chair, or pull it while lifting your weight to raise the seat.

The Auto-Harmonic Tilt operates automatically without user adjustment. When you recline, the mechanism responds to your body weight and movement intensity. There are no tension knobs to turn or tilt locks to engage. The flexible frame adapts continuously as you shift your posture throughout the workday.

For chairs equipped with adjustable arms, press the lever on the outer arm post to unlock vertical movement. Raise or lower the arm to your preferred height, then release the lever to lock it in position.

The Cosm Chair measures 26.75 inches deep from front to back across all three size options. The fixed seat depth is 15.5 inches from the front edge to the backrest.

Studio 7.5 created the Cosm Chair for Herman Miller. Founded in Berlin in 1992, Studio 7.5 has established a reputation for performance seating innovation, having previously designed Herman Miller's Mirra Chair series. Their approach to the Cosm focused on eliminating adjustment complexity while maintaining ergonomic integrity.

Herman Miller backs the Cosm with a 12-year warranty covering materials and workmanship under normal use conditions.