Described by The New York Times as “the gold standard in office seating.

Designer Niels Diffrient aimed to design an office chair that automatically adapts to the user, allowing them to move freely from posture to posture. He developed a recline mechanism that perfectly adjusts to the user, definitively reinventing modern task seating to be truly simple, functional, and beautiful.


Intelligent mesh chair engineered to provide lumbar support.

Liberty was designed to offer a unique, minimal aesthetic and to provide custom comfort for every person who sits in it. Liberty uses Humanscale’s revolutionary Form-Sensing Mesh Technology and mechanism-free recline for perfect support and unprecedented comfort.

Diffrient World

Eliminates the need for traditional mechanisms.

The design of Diffrient World Chair using the laws of physics and the user’s body weight to offer perfect recline for each individual user. A high quality, affordable task chair with minimal parts, the chair was built with longevity in mind and will look as good in ten years as it does today.

Diffrient Smart

The Diffrient Smart chair is an intelligent mesh task chair with a striking linear aesthetic that complements any environment. Engineered to provide automatic lumbar support for every user, as well as simplicity and ease of use, Diffrient Smart offers comfort, style and flexibility. Diffrient Smart was created by designer Niels Diffrient and, like Humanscale’s Liberty and Diffrient World chairs, uses Humanscale’s revolutionary Form-Sensing Mesh Technology and mechanism-free recline for perfect support for every user.

Smart Ocean

Living Product Challenge-certified

Smart Ocean is the embodiment of Humanscale’s commitment to sustainable manufacturing.

Partnering with Bureo – an emerging venture developing innovative solutions to prevent ocean plastic pollution, Smart Ocean is the first-ever task chair to incorporate recycled ocean plastics in its material composition and is also Living Product Challenge-certified.

Sidiz T50

A family of high specification seating, the multi-award winning T50 series is being chosen as the chair of choice by a rapidly increasing number of corporations worldwide, due to its unparalleled combination of ergonomic features, comfort and value for money.