• Breathable Air Grid® Seat and 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 Oversized Dual Wheel Carpet Casters • GREENGUARD Indoor Air Quality Certified®