Herman Miller Mirra Triflex Fully Adjustable - Navy / Graphite

The refurbished Herman Miller Mirra 1 is a premium ergonomic office chair originally designed by Berlin-based Studio 7.5. Combining responsive movement, breathable materials and practical adjustability, it provides supportive seating for home offices and professional workplaces.

This original Mirra 1 features a supportive graphite TriFlex® polymer back with a soft navy-blue mesh layer across the front. The structured polymer construction provides support, while the mesh covering adds a softer contact surface and helps maintain airflow around the user’s back.

Its breathable polymer suspension seat flexes with the user and distributes weight across the sitting surface without relying on thick foam cushioning. The seat also incorporates Herman Miller’s FlexFront® adjustable front edge. This allows the front of the seat to be repositioned to accommodate different leg lengths, support the thighs and reduce unwanted pressure behind the knees.

The seat height can be raised or lowered to suit the user and their workstation. A responsive forward-and-back tilting action supports movement between focused upright working and more relaxed reclining positions.

Adjustable armrests allow the user to reposition their arm support, while the soft gel arm pads provide comfortable cushioning beneath the forearms and elbows.

Finished in navy blue and graphite, this refurbished Herman Miller Mirra 1 offers a distinctive alternative to a conventional black office chair. It is ideal for home offices, commercial workstations, creative studios and businesses looking for high-quality refurbished ergonomic seating.

Each chair is pre-owned and professionally inspected, cleaned and prepared for reuse. Delivery is available throughout mainland UK, including London, Bradford, Leeds, Manchester and Birmingham.

Key Features

• Genuine Herman Miller Mirra 1 office chair
• Original Mirra model designed by Studio 7.5
• Graphite TriFlex® polymer back
• Soft navy-blue mesh layer across the back
• Breathable polymer suspension seat
• FlexFront® adjustable seat edge
• Adjustable thigh support
• Adjustable seat height
• Responsive forward-and-back tilting movement
• Adjustable armrests
• Soft gel arm pads
• Graphite frame and five-star base
• Smooth-running castors
• Suitable for home and commercial offices
• Professionally inspected and prepared
• Refurbished and pre-owned
• Sustainable alternative to purchasing new office furniture

TriFlex® Back Support

The Mirra 1’s distinctive TriFlex® back uses a flexible polymer structure designed to provide support while allowing movement.

This particular chair also has a soft navy-blue mesh layer across the front of the graphite polymer back. The combination creates a more comfortable contact surface while preserving the recognisable structure and ventilation of the Mirra design.

Breathable Polymer Seat

Instead of a conventional thick foam cushion, the Mirra 1 uses a flexible polymer suspension seat. It distributes weight across the seating surface and allows airflow, helping the user remain comfortable during everyday desk work.

FlexFront® Seat Adjustment

Herman Miller’s FlexFront® system allows the front edge of the seat to be adjusted to suit the user’s leg length.

The flexible front section can be repositioned to provide appropriate support underneath the thighs while maintaining comfortable clearance behind the knees. This makes it easier for different users to achieve a more suitable seating position.

Ergonomic Adjustments

Seat-height adjustment:
The seat can be raised or lowered to help the user position themselves comfortably in relation to their desk.

FlexFront® adjustable seat edge:
The front edge can be repositioned to accommodate different leg lengths and provide comfortable support beneath the thighs.

Responsive tilt movement:
The chair moves backwards and forwards, supporting changes between upright desk work and relaxed reclining positions.

Adjustable armrests:
The armrests can be repositioned to provide more suitable support for the user’s arms and shoulders.

Soft gel arm pads:
The cushioned pads provide a comfortable resting surface for the forearms and elbows.

Colour and Finish

• Back: Navy-blue mesh over graphite TriFlex® polymer
• Seat: Navy-blue breathable polymer suspension mesh
• Frame: Graphite
• Base: Graphite
• Arm pads: Dark gel-padded finish

Please note that colours may appear slightly different depending on lighting, photography and individual screen settings.

Condition

Refurbished / pre-owned.

Each chair is professionally inspected, cleaned and tested before dispatch. As an original pre-owned Mirra 1, it may display minor cosmetic marks on the frame, base or plastic components. These are consistent with previous use and should not affect the chair’s normal operation.

Why Choose a Refurbished Herman Miller Mirra 1?

The original Mirra remains a popular choice for customers seeking distinctive Herman Miller design, breathable construction and useful ergonomic adjustments at a more accessible price.

Choosing a refurbished Mirra 1 also keeps high-quality office furniture in use for longer. This reduces unnecessary waste and provides businesses and home workers with a more sustainable alternative to purchasing new seating.

Suitable For

• Home offices and remote working
• Corporate offices and workstations
• Design and architectural studios
• Universities and educational facilities
• Shared workspaces
• Hot-desking environments
• Creative workplaces
• Businesses ordering refurbished chairs in quantity

UK Delivery

Delivery is available throughout mainland UK, including London, Bradford, Leeds, Manchester, Birmingham and surrounding locations.

Please contact us regarding bulk quantities, commercial orders or larger office furniture projects.

Frequently Asked Questions

Is this chair a Mirra 1 or Mirra 2?
This is the original Herman Miller Mirra 1, not the newer Mirra 2.

What is the TriFlex® back?
TriFlex® refers to the chair’s flexible polymer back structure. This particular chair also has a soft navy-blue mesh layer across the front.

Does the chair have a mesh seat?
Yes. It has a breathable polymer suspension seat that flexes with the user and distributes weight across the seating surface.

What is the FlexFront® seat?
FlexFront® allows the front edge of the seat to be repositioned. This helps accommodate different leg lengths, support the thighs and maintain clearance behind the knees.

Is the seat height adjustable?
Yes. The seat can be raised or lowered to suit the user and the height of their workstation.

Does the chair recline?
Yes. Its responsive tilting mechanism allows the chair to move backwards and forwards between upright and reclined positions.

Are the armrests adjustable?
Yes. This model has adjustable armrests fitted with soft gel arm pads.

Does this chair have adjustable lumbar support?
No separate adjustable lumbar mechanism is advertised as part of this particular chair’s configuration.

Is this chair new?
No. It is an original, refurbished and pre-owned Herman Miller Mirra 1.

Will it show signs of previous use?
Minor cosmetic marks may be present because it is a refurbished chair. These should not affect its comfort or normal operation.

Do you deliver to London?
Yes. We deliver to London as well as Bradford, Leeds, Manchester, Birmingham and other mainland UK locations.

Can I purchase multiple chairs?
Yes, subject to stock availability. Please contact us regarding bulk quantities and commercial office requirements.