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Office Master

Office Master OM5-EX Executive-Hybrid Chair

Office Master OM5-EX Executive-Hybrid Chair

Regular price $594.10
Regular price Sale price $594.10
Sale Sold out
Ships within 2-4 weeks

Customizations Total: $0.00

OM5-EX Executive-Hybrid Chair features a Tall Back and Body-Activated Motion which automatically adjusts tension by user's body weight. Also features Polyflex back with variable resistance.

A ''modern classic'' suited to a variety of work environments from general, to executive suites, to boardrooms. OM5's backrest utilizes a simple physics formula to sense your need to recline or get more lower back support.  The patented recline action allows the backrest and seat to work in unison so that the backrest is a lever for pushing the body’s weight “uphill”, removing the need for manual tension adjustment.

Specifically designed to provide firm lower back support while you work at a desk. Lean fully into the backrest, and as your shoulder makes contact with the backrest, instantly recline – and pause – as you wish!

Polyflex back may be ordered in 3 colors, however you can also upgrade to mesh or upholstery over the Polyflex back. Zodiac mesh, hundreds of fabric/color combinations, and 4 leather color choices available.

Zodiac Mesh Back Colors (PDF)

Ergonomic waterfall seat made be ordered in your choice of hundreds of fabric/color combinations, and 4 leather color choices. Modern Black or Palladium Grey frame colors available.


Features & Benefits:

  • Body-Activated Motion, which allows OM5 chairs to respond to user's body weight without cumbersome tension knobs.
  • Range of ergonomic features including Virtual Pause, Variable Back Response, Waterfall Flex, etc.
  • Designed by: Francisco Romero of Phidesign


  • Back: 18" wide x 24.5" high
  • Seat: 19.75" wide x 16.5" - 18" deep (17" - 18" deep w/ upholstered back)
  • Overall Height: 40" - 45"
  • Overall Width: 27"

Arm Options:

Polyflex Backs:




  • 5" Std - Seat height range: 17" - 22"
  • 4" Low - Seat height range: 15.25" - 18.75"
  • 6" Tall - Seat height range: 19.75" - 26"

Memory Foam Seat Sub-layer (optional):

  • Concealed memory foam upholstery layer added underneath regular HR foam cushion for additional comfort, even while preserving contemporary styling contours for higher-design models.


Headrest (optional):

  • 3-way adjustable upholstered headrest with OM5 Series (upholstered in black leather-like material)


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