• Low Back
  • Mid Back
  • High Back


  • No Arm
  • Fixed Arm
  • Leaf Arm
  • Adjustable Arm

Calculate Shipping Cost





  • High Back


  • Leaf Arm
฿2,200.00 / month
or 3 payments of ฿733.33 with
  • There is a minimum contract value of ฿ 5,000 per item.
  • We offer a grace period of 3 calendar days for return/swap free of charge.
  • All regular wear and tear (scratches, fading and loose parts) are covered by our maintenance program.
  • For tracking reasons, please do not move the chair from the delivery address in your subscription contract.
  • Only available in Bangkok, Nonthaburi, Samutprakarn, Samutsakhon, Samutsongkram, Prathumthani, Nakhon Pathom, Chacheongsao, Chonburi
More detail about subscription

Exclusive and Authorized
Herman Miller Retailer
& Ready to Go
Circular Economy
& Sustainability Commitment

The Chair for You

The latest ergonomic seating from Herman Miller, the Cosm Chair is as innovative as it is beautiful, with a design that automatically adjusts to anyone who sits down next.


For an office chair that will feel like it was crafted just for you without a single manual configuration required, look to the award-winning Cosm. The Cosm Chair’s responsive design that automatically self-adjusts to support the sitter is its defining characteristic. Its Intercept suspension back, made of cooling elastomeric mesh, enables it to contour to the spine and respond to the body’s movements effortlessly, providing comfortable support that isn’t too soft or firm. The Auto-Harmonic Tilt feature, in conjunction with its flexible glass-filled polypropylene frame, lets this ergonomic office chair breathe in motion with you, reclining as you do.


Cosm is available in various colors, three back heights (low-back, mid-back and high-back) and four arm options (fixed, fully adjustable, leaf and none).

Key Features

  • Provides total, weightless support – no adjustments necessary
  • Flexible, sturdy frame instantly responds to your every movement

Technical Specifications

Cosm Low Back
  • Height: 86.00 –101.60 cm
  • Width: 67.82–74.42 cm
  • Depth: 67.82 cm
  • Seat Height: 37.59–54.36 cm
  • Seat Depth: 40.39 cm
  • Seat Width: 52.70 cm
  • Arm Height: 18.54 – 29.72 cm
Cosm Mid Back
  • Height: 98.04–114.05 cm
  • Width: 67.82–74.42 cm
  • Depth: 67.82 cm
  • Seat Height: 37.59–54.36 cm
  • Seat Depth: 40.39 cm
  • Seat Width: 52.70 cm
  • Arm Height: 18.54 –29.72 cm
Cosm High Back
  • Height: 114.05–130.05 cm
  • Width: 67.82–74.42 cm
  • Depth: 68.58–69.85 cm
  • Seat Height: 37.59–54.36 cm
  • Seat Depth: 40.39 cm
  • Seat Width: 52.70 cm
  • Arm Height: 18.54–29.72 cm

  • 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

We stand behind the quality and performance of our products with a 12-Year warranty

No Adjustments Necessary

The Auto-Harmonic Tilt instantly and automatically provides balanced support and movement, depending on your body and posture.

Seamless Support

Breathable and temperature-neutral, the Intercept suspension has a continuous form that eliminates the gap between the seat and back. It conforms to each person's body to provide dynamic spinal support.

Comfort in Motion

The flexible frame is thin but strong and feels nearly nonexistent. It offers support while flexing so you can comfortably move your upper body.

Adjusting Cosm

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