Herman Miller Classic Aeron Task Chair: Tilt Limiter w/Seat Angle Adj - Lumbar Pad - Fully Adj Vinyl Arms - Standard Carpet Casters Pellicle Made in USA Made in USA Herman Miller's patented Kinemat tilt mechanism lets your neck, shoulders, hips, knees, and ankles pivot naturally Unique breathable Pellicle suspension dissipates the body heat that builds up while you work, keeping you cool and comfortable, while providing unparalleled support The "waterfall" front edge of the seat takes the pressure off your thighs, so your blood keeps circulating, keeping you alert and focused 12-year Herman Miller warranty, open box refurb.