Keep your cool with these hardworking chairs. On top of the light-as-a-cloud Air Grid back, each also comes with a seat fabricated from a tough, breathable mesh fabric. Offering exceptional strength, this mesh also offers a distinctive and inviting texture. The 2-to-1 synchro tilt mechanism found on the 55403 and 5500 helps optimize posture by moving the seat and back simultaneously at different angles.

• Thick Padded Contour Seat and Air Grid Back with Built-in Lumbar Support
• One Touch Pneumatic Seat Height Adjustment
• 2-to-1 Synchro Tilt Control with Adjustable Tilt Tension
• Height Adjustable Angled Arms with Soft PU Pads
• Heavy Duty Angled Nylon Base with Dual Wheel Carpet Casters