The Human Solution: Humanscale Freedom Chair Features Virtual Lock. That’s Right, Virtual Lock!
(The Human Solution, June 15, 2012) By Will M.
This article explores the issues found in many ergonomic chairs and how Humanscale's "virtual lock" on the Freedom Chair solved all adjustability issues.
Engage your back fully with your backrest, then adjust the depth of your seat pan to allow for one or two inches of clearance between the back of your knee and the front edge of the seat.
Ergo Gear Guide