Designed by Studio 7.5

Mirra 2 Stool

Front angle view of a Mirra 2 stool with a Butterfly back.

Highly responsive and lighter than ever

Named for the way it mirrors the body’s movements, Mirra 2 balances immediate comfort and personalized ergonomics in one sophisticated design that can have a professional or playful aesthetic, depending on the color palette. Designed with an “earth first” philosophy, it’s an agile, high-performance stool for people who toggle between individual activities and collaborative work.

A Mirra 2 Stool with a Triflex back and adjustable arms in graphite by a storage table in a design studio.

Moves naturally with you

Support for seated movement starts with a flexible yet supportive design that allows your body to move naturally and freely. Mirra 2 has torsional flex, allowing you to stretch laterally, and a tilt that creates a smooth and balanced feel as you change postures, regardless of your build. Its sacral support promotes proper spine alignment. An inventive use of materials keeps your body supported and cool. It’s this combination of dynamic support and personalized ergonomics that make Mirra 2 exceptional. 

Every molecule counts

Winner of multiple sustainability awards, Mirra 2 was the first office chair developed from the ground up with environmental responsibility in mind. Since it was introduced in 2003, we’ve made it 30 percent lighter and we’ve converted its nylon base and spine to 100 percent recycled content, further reducing the stool’s carbon footprint.

Close up of the backs for three Mirra 2 chairs. One is a color-block olive chair, one is an olive chair with a Butterfly back and the other is an alpine chair with a Triflex back.

Versatile and innovative CMF

As performance defines the look of Mirra 2’s components, the color of those components allows significant options for defining the overall aesthetic of your chair or stool, offering everything from clean, monochromatic to bold color blocking. A modern, inspiring color palette for textiles, back loop and spine, and base finishes offer flexibility and encourage personalization.

The secret behind Mirra 2’s responsiveness

How, exactly, is Mirra 2 able to mirror your natural movements, supporting your body at every twist and shift? Through a combination of innovative design and special materials.

Butterfly Back

Made from a combination of a fabric-and-polymer backrest and a self-contouring seat material that acts like a suspension membrane, the Butterfly Back is mapped to your body’s anatomy. The result is an ultra-responsive chair that conforms to your shape and provides custom support for your body as it eliminates pressure points.

Front view of a Mirra 2 chair with a Triflex back in ultramarine blue.

TriFlex back

The polymer-only TriFlex back has the same self-contouring suspension seat material as the Butterfly Back and the same zones of support created by the size, shape, and pattern of the perforations. Because it doesn’t have any fabric, the TriFlex back meets more rigorous cleaning protocols. 

Harmonic 2 tilt

Made possible by kinematic technologies designed around the body’s natural pivot points, the Harmonic 2 tilt enables the chair to move in tandem with your body through a range of postures, keeping you in balance without stressing any part of your body. 

Loop spine

Because it connects to the chair in only two areas, the loop spine provides torsional flex, allowing Mirra 2 to move and bend with you as you stretch and reach laterally. It enhances the chair’s responsiveness and gives you a greater range of supported movement. 

Side view of a Mirra 2 chair with a Butterfly back in ultramarine blue and alpine frame.

AireWeave

The elastomeric AireWeave suspension seat conforms to your shape, distributes your weight evenly, and keeps heat from building up as you sit, regardless of how active you are. 

PostureFit

Our patented sacral support, PostureFit supports your spine at its lowest point, the sacrum, and reinforces your pelvis, preventing slouching and fatigue while you sit.

Line art of Mirra 2 Stool–Suspension Back–Adjustable Arms

Specs

View the dimensions, materials, details, and available options for Mirra 2 Stool.

See the details

Meet the family

Mirra 2 work chairs and stools are both available in two back options, either the flexible TriFlex back or the ultra-responsive Butterfly Back. Stools extend the Mirra 2 design into any setting where seated and standing collaborators benefit from being at a common eye level.

A Mirra 2 chair with Trilex back beside.a Mirra 2 Stool and Mirra 2 chair with a Butterfly back. All chairs are in alpine.
The Studio 7.5 design team sitting together in a group on benches in their studio.

Design Story

How Studio 7.5 took a very good chair and made it not just better, but lighter—twice, over the course of 20 years.

Read the design story