The World Chair marks Humanscale s first foray into all mesh task seating. Like its mesh backed forerunner, Liberty, the World chair s tri panel backrest hugs the body to provide tailor made lumbar support, while its mesh seat eliminates contact stress under the thighs. But the World s major innovation is its mechanism free recline action, which leverages two parts of the chair s frame and the laws of physics to provide automatic, balanced support throughout the full range of recline. No chair i