Office Master

YSYM Large/Extra Tall Mesh Back Task Chair

Full Description
Chair Fabric Options Choose a color *
Arm Options

YSYM Large/Extra Tall Mesh Back Task Chair 

Office Master, Inc. produces high-quality, ergonomic seating that fits perfectly into any working environment—big, small, institutional, healthcare, corporate and others.and any working budget. As a company, they strive to maintain focus on the well-being and complete satisfaction of all customers
The mesh-backed chairs with upholstered seating provides for a wide range of work environments. The sigh-producing soft cushions have a comfortable, mild saddle contour and a full suite of available mechanisms to achieve any level of adjustability desired. The timeless traditional mesh aesthetic in one of the most proven choices! 
The YSYM Chair combines comfort, attractiveness and affordability into one great chair for Large/Extra Tall persons.

The YSYM mesh back task chair delivers all of these as well as reliable performance in a stylish, modern package.

Aside from the YSYM, a complete line has been designed with this same mesh back design so that your whole office can share the same great look, at the same great value.

Note: Arms sold separately.


  • Pneumatic lift
  • EZ back height adjustment
  • Tilting backrest
  • Rocking tilt
  • Forward tilting
  • Tension knob
  • Mesh back
  • Seat depth adjustment
  • Infinite forward tilting

Standard Textile

  • Grade 1 / Carbon/Black (1140) or Iodine/Burgundy (1147)
  • Elements 1140-1148
  • Specifications
  • Content: 50% Polyester, 50% Post Industrial Recycled Polyester - Reduced Environmental Impact
  • Backing: Polyurethan 
  • Width: 54" 
  • Abrasion: 150,000 Double Rubs
  • Lightfastness: 40 Hrs. - Class 4.5
  • Flammability: Passes California TB 117-2013; NFPA 260 Class 1


  • Overall Width : 28"
  • Overall Height : 42-52"
  • Back : 19"w x 24"h
  • Seat : 23"w x 22-25-21.1"d
  • Seat Height : 19"-25"
  • COM : 1 yard
  • Carton Weight : 55 pounds
  • UPS Weight : 101 pounds
  • Arms : Groups 1 & 4
  • Warranty : 12 year limited

Arm Options

  • KR-200  - $109.00 Height & Width adjustable T-arms w/natural grip control. Adjustable ht. range = 2.75". Adjustable width range of approx. 1" per side. 12 year limited warranty on the arm frames and 2 years limited warranty on the arm pads.
  • Adjustable Arm Height - Benefit: Create more comfort as you sit, by periodically adjusting your armrest height up or down. Doing so will alter the level of support that your elbow and forearms receive as you are seated. 
  • Adjustable Arm Width - Benefit: Expand or contract the distance between the armrests and consequestnly increase or decrease the seating area of your chair. This function comes in particularly handy for chairs that are used in multiple shifts or by many different users who may each have their own preferences with regard to distance. 
  • Easy Removal

OM seating is made-to-order product and available for shipping from Ontario, California with normal lead-times of around 5 working days.  Please contact us if you would like additional customization to your chair. 

Current Stock:
Width: 1.00
Height: 1.00
Depth: 1.00
Warranty: OM chair parts are warranted for lifetime, 12- and 7-year periods (varies by series). Every chair carries a “born-on” production label showing all pertinent information to support follow-up warranty claims.