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Explore Torsion Air Stack Chair

Torsion Air® combines a patented torsion flex mechanism with a fresh, mesh back. The result is a light visual impression, breathability and exceptional comfort. Stack chairs available with four-leg or sled base. Available with arms, armless, or with tablet arm.

Contemporary Torsion Elegance

Uncover the core of sleek, contemporary, and adaptable comfort. This modern reimagining of the iconic Torsion® integrates a more delicate visual impact, improved breathability, and unparalleled coziness. Embrace the convenience of effortless maintenance through the stackable frame configuration.


  • Torsion Air stack chairs combine a lighter visual impression, breathability and exceptional comfort
  • Patented torsion flex mechanism delivers flex back comfort, encourages movement, relaxation and enhanced circulation
  • Breathable mesh back with upholstered seat
  • Arms, armless or tablet arm
  • 4-leg or sled base styles
  • Stacks 4-high on floor or 5-high on dolly


  • Seat is two-piece construction with molded poly liner and shroud in a textured finish
  • Backrest is molded glass-reinforced nylon with 100% polyester mesh in black or grey
  • Torsion mechanism creates gradually increasing resistance over the full 12 degrees of back flex
  • 4-leg frames are two u-shaped 15/16", 15-gauge seam welded tubular steel
  • Sled base frames are 3/4" 16-gauge seam welded tubular steel
  • Frames are finished in either baked-on electrostatically-applied powder-coat paint or bright nickel-chrome plating
  • Glides are plastic or stainless steel

Giancarlo Piretti

Giancarlo Piretti (Bologna, Italy, 1940) is an Industrial Designer. Among his successful designs are Plia folding chair, his best-seller exhibited at Moma NY, Platone folding desk, and DSC (106-AXIS) seating system. For Vertebra chairs he obtained the Compasso d'Oro (Italy) as well as for his largest project, Piretti Collection office & institutional seating system. Other designs include Xylon wooden chairs, Torsion collection of institutional chairs; Engage & Impulse office chair lines featured by a synchro tilt mechanism Piretti developed; #18000 nesting & stacking chairs; and the Strive chair collection. The Pirouette nesting table and Grazie and Doni chairs for KI U.S. are G. Piretti's latest designs.

List Price Starts At

$681 –  $944

Lead Time

6* Weeks

*Plastic glides have an extended lead time, please contact customer service for details. For Torsion Air stack chair dollies, lead time is 7 weeks.

Product Warranty


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