Herman Miller Aeron Chair – Size Small??? This ergonomic office chair is known for its superior comfort, breathability, and back support-perfect for long work hours or gaming. ? Color: Classic graphite/black. ? Features: Adjustable armrests, tilt limiter, breathable mesh, lumbar support. ? Condition: Out of box new. Height Range: 14.75″ – 19″. From Seat: 7″ – 11″. Supports up to 300 lbs.