Herman Miller Aeron

The Aeron is the chair to choose over the Leap when breathability matters to you, because its elastomeric suspension mesh keeps air moving and avoids the warmth of an upholstered seat during long sessions. For back pain specifically, Herman Miller's PostureFit SL system is the draw: it supports the sacral region as well as the lumbar, which is intended to rotate the pelvis forward and encourage the spine's natural S-shape. The standard chair includes a fixed PostureFit SL; an adjustable PostureFit SL with forward tilt is a paid configuration upgrade worth choosing if you want to fine-tune the height. Where it trades down against the Leap is seat adjustment. The Aeron has no adjustable seat depth and comes in three fixed sizes (A, B, C), so getting the fit right means choosing the correct size at purchase rather than dialling it in, and the taut mesh seat divides opinion for those who prefer a cushioned feel. The standard graphite chair sits at an indicative ~£1,189 on Herman Miller's UK store, rising with the adjustable PostureFit SL and other options. For a hot home office, or anyone who found foam seats made them fidget, the Aeron is the standout; if you need micro-fit adjustability, the Leap edges it.