Aeron Chair (Onxy, B size)

Aeron Chair (Onxy, B size)

Making the Best Better for Earth. Exact same chair, just a little more sustainable. Meet the new generation of Aeron Chair, made with plastic waste diverted from our oceans. Same design. Same ergonomic support. Now more sustainable.


B - Medium Chair Size 
Standard Height Range 
Tilt Limiter and forward tilt 
Fully Adjustable Arms 
Non-upholstered Armpads in Black finish
Dual PostureFit SL Support 
Black Frame
Onxy Ultra Matte Chassis and base finish
65mm Carpet Casters   
Black 8Z Pellicle Suspension Material (Seat and Back)

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A Sustainable Detour

Material innovation has always been a part of our design development at Herman Miller and we're excited to incorporate ocean-bound plastic into our products. For example, the Aeron Chair in Onyx diverts over 44 metric tons of plastic annually away from the ocean!

Don Chadwick

“It’s going to be a whole new experience, and yet the chair is still going to be an Aeron chair.”

Don Chadwick View Design Story
  • Aeron Chair 8Z Pellicle Backrest

    Get into the Zones

    Across Aeron's 8Z Pellicle elastomeric suspension seat and backrest, eight latitudinal zones of varying tension envelop you as you sit, delivering greater comfort and ergonomic support. The new 8Z Pellicle also allows body heat to pass through to help maintain an even and comfortable skin temperature.

  • Aeron Chair with PostureFit SL

    A Stance Worth Backing

    An active body is at its strongest when standing, chest open and pelvis tilted slightly forward. PostureFit SL supports your spine to give you the same benefit while seated. Adjustable, individual pads provide lumbar support and stabilize the base of the spine for a more powerful seated posture.

  • Aeron Chair Chassis with Tilt Options

    If You're So Reclined

    Sitting in one position reduces the natural pumping action of the muscles that deliver nutrients to the spine. As you sit in Aeron, however, the tilt allows the chair to move seamlessly with your body, so shifting between forward and reclining postures is smooth and balanced throughout the entire range of recline.

  • Aeron Chair Components with a Mineral Finish

    The Best, Now Better for Earth

    Aeron is available in three tightly curated, holistic material expressions. Graphite is the darkest, a modern rendition of the classic Aeron look. Carbon offers a balanced neutral for a modern chair that works equally well in both warm and cool environments. Mineral is the lightest, with a fresh, ethereal quality that borders on translucence. Onyx boldly updates Aeron with dramatic, ultra-matte back shade for a high-contrast appearance that instantly stands out.

  • Three Aeron Chair Sizes

    Sustainable from the start

    Aeron in Onxy is made of up to 2.5 pounds of ocean-bound plastic, helping to divert more than 44 metric tons of plastic waste from the ocean annually*. Aeron has also received the Indoor Advantage Gold certification, SCS Global Services' highest level of indoor air quality performance for furniture. The certification ensures that furniture products support a healthy indoor environment by meeting strict chemical emission limits for volatile organic compounds (VOCs). *Based on annual sales forecast.

  • Aeron Chair Mineral Finish Side View

    Cross-Performance Design

    For individuals sitting in Aeron, cross-performance design means the ergonomic chair fully accommodates the widest possible range of activities and postures people adopt while working, from intense, forward-facing focus to relaxed, contemplative recline.