The Herman Miller Mirra 1 and Mirra 2 are both excellent ergonomic office chairs, but the Mirra 2 introduces significant upgrades in comfort, adjustability, and materials. The original Mirra 1 is a durable, high-performance chair often found on the refurbished market, while the Mirra 2 features a more responsive mesh back, refined ergonomics, and lighter, more sustainable construction.
Here’s a detailed look at both chairs to help you decide which is the right investment for your workspace.
Herman Miller Mirra 1 Chair
The Mirra 1 was the original model that established the Mirra line within Herman Miller's collection of high-performance seating. Known for its perforated, flexible backrest and sturdy build, it gained popularity as a reliable and more accessible alternative to chairs like the Aeron. Today, it's primarily available on the secondary and refurbished market, making it a great value for those seeking premium ergonomics on a budget.
- What it is: The first-generation ergonomic office chair in the Mirra series, now discontinued but widely available as a refurbished product.
- Key features: Polymer perforated backrest (TriFlex), passive PostureFit lumbar curve, adjustable seat depth, tilt limiter, and adjustable arms.
- Price: Typically $300 - $600 on the refurbished market.
- Style: A functional, utilitarian aesthetic with a classic early 2000s office chair design. Its focus is more on performance than sleek modern lines.
- Materials/Construction: Built with a durable recycled aluminum frame and a solid polymer backrest made for longevity. A high-quality construction that stands the test of time.
- Pros: Excellent value when purchased refurbished. Proven ergonomic support and durability. Retains its value well over time. A cost-effective way to get a premium chair.
- Cons: Cannot be purchased new and does not come with a factory warranty. Adjustments are less refined compared to the Mirra 2. The solid plastic back can feel stiffer than a mesh alternative.
The Mirra 1 is an excellent option for anyone looking for the durability and core ergonomic features of a Herman Miller chair without paying a premium price.
Shop this product: Available through authorized refurbished furniture dealers.
Herman Miller Mirra 2 Chair
The Mirra 2 is the modern evolution of the original, redesigned from the ground up to be more dynamic and responsive to a user's movements. Lighter, sleeker, and more eco-friendly, its signature feature is the "Butterfly Back" - a flexible, fabric-over-polymer design that provides superior support and breathability. It represents the latest in Herman Miller's ergonomic innovation.
- What it is: The current-generation Mirra chair, featuring significant upgrades in material technology, adjustability, and overall responsiveness.
- Key features: Butterfly Back suspension membrane for dynamic support, enhanced PostureFit sacral support, improved tilt mechanism, lighter frame, and greater use of sustainable materials.
- Price: Often starts around $900 and can go up to $1,500+ depending on configuration.
- Style: Sleek, modern, and athletic. The refined lines and updated textile options give it a more contemporary appearance suited for modern home offices.
- Materials/Construction: The frame is lighter and more streamlined without sacrificing durability. The hybrid structure of the Butterfly Back combines the flex of polymer with the support of a textile layer for better comfort.
- Pros: Highly responsive backrest that moves with you. More intuitive and precise adjustments. Lighter and easier to move. Available new with a full 12-year warranty. Made with more sustainable materials.
- Cons: Significantly higher price point. The intricate back design can collect more dust than the original.
The Mirra 2 is designed for users who spend long hours at their desks and require sophisticated, dynamic support that actively responds to their movements.
Shop this product: store.hermanmiller.com/office-chairs/mirra-2-chair/4493.html
Mirra 1 vs. Mirra 2 Comparison
Style & Aesthetic
While both chairs share a similar profile, the aesthetic differences are clear. The Mirra 1 has a functional, robust appearance with harder lines and a solid, perforated back that looks built for utility. It embodies a classic, heavy-duty office chair design that prioritizes function over form.
The Mirra 2 is visibly more contemporary and athletic. Its frame is slimmer, its lines are more fluid, and the Butterfly Back textile adds a layer of visual softness and sophistication. It looks lighter and more integrated, making it a better fit for design-conscious home offices or modern corporate spaces.
Comfort & Ergonomics
This is where the two chairs differ the most. The Mirra 1 provides very good, static support with its adjustable features and naturally curved backrest. It’s comfortable and promotes good posture, but it requires the user to manually find the right settings.
The Mirra 2 offers dynamic support. The Butterfly Back and redesigned tilt mechanism are engineered to move with your body as you shift, stretch, and reach. The hybrid mesh-and-polymer back provides a more customized, conforming fit that reduces pressure points and supports micro-movements throughout the day. The enhanced PostureFit AL provides more targeted sacral and lumbar support that users can dial in precisely.
Materials & Construction
Both chairs are built to Herman Miller’s high standards. The Mirra 1 is heavier and "built like an M1 Abrams tank" - a testament to its durability and reliance on sturdy, older manufacturing techniques. Its TriFlex polymer back is incredibly tough and easy to clean.
The Mirra 2 has a smarter, more efficient construction. It's 22% lighter than the original, is made with more recycled content, and is 93% recyclable at the end of its life. The Butterfly Back suspension fabric is more breathable and engineered to provide zonal support - softer in some areas, firmer in others - for a more tailored feel.
Price & Value
The value proposition for each chair is very different. A refurbished Mirra 1, often available for $300-$600, offers incredible value. It delivers about 80% of the ergonomic performance of a top-tier chair for less than half the price, making it a budget-friendly entry into premium seating.
The Mirra 2 is a long-term investment in cutting-edge comfort and your health. Its higher price (often $900+) is for the improved dynamic support, modern aesthetics, and the peace of mind of a brand-new product backed by a comprehensive 12-year warranty from Herman Miller.
Which One Should You Choose?
Both Mirra chairs are fantastic options, but they cater to different buyers and priorities.
Choose the Mirra 1 if:
- You're on a budget and want the best ergonomic value under $600.
- You are comfortable buying from a reputable refurbished dealer.
- You need a durable, no-fuss workhorse chair for a home or office setting.
- You prefer solid, predictable support over a chair that moves with you.
Choose the Mirra 2 if:
- You sit for more than 6-8 hours a day and need dynamic support.
- You want the most advanced ergonomic features and precise adjustability.
- A new product with a full 12-year manufacturer warranty is a top priority.
- You value a lighter, more modern aesthetic and sustainable design.
Frequently Asked Questions
What's the main difference between the Mirra 1 and Mirra 2?
The main difference is the backrest and overall responsiveness. The Mirra 1 has a solid polymer back for sturdy support, while the Mirra 2 features the hybrid "Butterfly Back," which is more flexible, breathable, and moves with your body for dynamic support.
Is the Mirra 2 worth the extra cost over a refurbished Mirra 1?
For users who spend most of their workday seated, need precise lumbar tuning, or frequently shift positions, the Mirra 2's dynamic support can justify the cost. For those needing a solid ergonomic chair for moderate use, the refurbished Mirra 1 offers better financial value.
Can you still buy the Herman Miller Mirra 1 new?
No, the Mirra 1 was discontinued after the launch of the Mirra 2. It is now only available on the pre-owned and refurbished markets through specialized dealers.
How long does a Herman Miller Mirra chair last?
Both chairs are exceptionally durable and built to last over a decade. The new Mirra 2 comes with Herman Miller's 12-year warranty, and it's common to see Mirra 1 chairs still in daily use 15+ years after they were made.
What is the "Butterfly Back" on the Mirra 2?
The Butterfly Back is the signature feature of the Mirra 2. It's a hybrid design where a textile layer is merged with a new polymer material, creating an intelligent support structure that is lightweight, flexible, and provides targeted support across the back.
Does the Mirra chair work for tall people?
Yes, both models are designed to fit a wide range of body types. With features like adjustable seat depth ("FlexFront"), they can comfortably accommodate users from petite individuals through to taller people over six feet.
How do you clean the Mirra chair's backrest?
For both models, a simple wipe-down with a water-dampened cloth is usually sufficient. For tougher stains, use a mild, water-based cleaner or a mix of gentle soap and water.
Where is the best place to buy a Mirra chair?
For a new Mirra 2, the official Herman Miller website or an authorized dealer is best to ensure you receive the full warranty. For a Mirra 1, look for reputable, highly-rated office furniture refurbishers who offer their own warranties on used products.
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