New Herman Miller Aeron Chair Lumbar Support Size A B C - HermanMiller
Aeron Fit / Size Chart. Aeron Design Story. Aeron 12- Year Warranty. The Original AERON® Chair. Lumbar Video (490KB). Model - Smoke Grey Lumbar Support Pad. Lumbar Pad Size A has 14 ridges. Lumbar Pad Size B has 17 ridges.