Herman Miller Mirra 2 Butterfly Back Office Chair – Graphite | In Stock for Fast UK Delivery

A Dynamic Ergonomic Office Chair That Moves With You

The Herman Miller Mirra 2 Butterfly Back Office Chair is designed for people who don’t sit still. Whether you’re leaning forward to concentrate, turning to collaborate or reclining between tasks, the Mirra 2 responds naturally to every movement, providing continuous support without restricting the way you work.

Finished in timeless Graphite and available with fast UK delivery from Wellworking, this fully specified Mirra 2 combines Herman Miller’s innovative Butterfly Back, PostureFit support, adjustable lumbar support, forward tiltand fully adjustable arms to deliver outstanding ergonomic comfort throughout the working day.

Unlike the TriFlex back, the Butterfly Back combines a breathable fabric suspension layer with a flexible polymer frame. The result is a softer, more responsive backrest that gently adapts to your body while maintaining exceptional support. Combined with the flexible Loop Spine and Harmonic™ 2 Tilt mechanism, the Mirra 2 encourages effortless movement, helping you stay comfortable and supported from your first meeting to your final email.

Lightweight, highly responsive and built for modern ways of working, the Herman Miller Mirra 2 is equally at home in professional workplaces and premium home offices.

▶ Watch our Mirra 2 adjustment video to discover how to get the very best from every ergonomic feature.

Key Benefits

Designed to Move With You – The Mirra 2 responds instantly to changes in posture, providing continuous ergonomic support throughout the day.

Butterfly Back Comfort – A unique combination of breathable fabric and flexible polymer creates a softer, more responsive sitting experience than the TriFlex back.

Fully Ergonomic Specification – Includes fully adjustable arms, adjustable lumbar support, PostureFit support, forward tilt and tilt limiter.

Exceptional Breathability – The Butterfly Back and AireWeave seat promote airflow to help keep you cool during long periods of sitting.

Lightweight Yet Incredibly Strong – Engineered for everyday commercial use while maintaining a light, agile feel.

In Stock for Fast UK Delivery – Delivered free throughout mainland UK from Wellworking stock.

12-Year Herman Miller Warranty – Complete peace of mind with Herman Miller’s industry-leading manufacturer warranty.

What’s Included

• Herman Miller Mirra 2 Butterfly Back Office Chair
• Graphite Butterfly Back
• Graphite frame and base
• Graphite AireWeave seat
• Fully adjustable arms
• PostureFit support
• Adjustable lumbar support
• Harmonic™ 2 Tilt
• Forward tilt
• Tilt limiter
• FlexFront® adjustable seat depth
• Choice of castors
• Vinyl arm pads
• Delivered fully assembled (unless knock-down delivery is requested)

Ideal For

• Home offices
• Professional workplaces
• Hybrid working
• Users spending 6–10 hours a day at a desk
• Active users who frequently change posture
• Anyone looking for a premium ergonomic office chair
• Users wanting breathable, responsive support

Wellworking Says…

“The Mirra 2 is one of those chairs that becomes more impressive the longer you use it. It feels lighter and more responsive than many ergonomic chairs, moving naturally with your body rather than encouraging you to sit in one position. The all-Graphite finish remains one of our most popular choices, combining understated styling with exceptional comfort and fast delivery from stock.”

Herman Miller Mirra 2 Butterfly Back FAQs

What makes the Butterfly Back different from the TriFlex back?

The Butterfly Back combines a breathable fabric suspension layer with a flexible polymer support structure, creating a softer, more adaptive feel while maintaining excellent ergonomic support. It’s an ideal choice for users who prefer a slightly more cushioned sitting experience without sacrificing breathability.

Is the Herman Miller Mirra 2 good for long hours of work?

Yes. The Mirra 2 is designed for extended periods of sitting and supports natural movement throughout the day. Its Harmonic™ 2 Tilt, PostureFit support, Butterfly Back and AireWeave seat work together to encourage healthy posture and lasting comfort.

What are the key ergonomic features?

The Mirra 2 includes:

• Fully adjustable arms
• PostureFit support
• Adjustable lumbar support
• Harmonic™ 2 Tilt
• Forward tilt
• Tilt limiter
• FlexFront® adjustable seat depth
• Seat height adjustment

Together, these features allow the chair to be tailored to a wide range of users and working styles.

How do I adjust the Mirra 2?

Seat height, seat depth, recline tension, forward tilt, armrests and lumbar support can all be adjusted to create your ideal ergonomic sitting position. We also recommend watching our adjustment video to get the very best performance from your chair.

Does the Mirra 2 require assembly?

No. Your Herman Miller Mirra 2 is delivered fully assembled and ready to use unless knock-down delivery is specifically requested.

What warranty is included?

The Herman Miller Mirra 2 is covered by Herman Miller’s comprehensive 12-year manufacturer’s warranty when purchased from an authorised retailer such as Wellworking.

Where can I try a Herman Miller Mirra 2?

You’re welcome to visit our showrooms in London, Pershore or Galashiels to experience the Herman Miller Mirra 2 for yourself. Contact our team to arrange an appointment and receive expert advice.