DUO 400 AXIS RL - HIGH BACK
DUO 400 AXIS RL - HIGH BACK
High-Back Dual Density Posture Support
The DUO 400 AXIS RL - HIGH BACK is a high-back ergonomic task chair built around the proven DUO™ Dual Density Posture Support Seat.
Its split-cushion construction combines a softer rear seating zone with a firmer front section, working together with the lower backrest to support pelvic positioning, spinal alignment and sustained sitting comfort.
The high backrest provides broader support through the torso, while accessible seat, back and tilt adjustments allow the chair to be configured to the individual and adjusted as posture changes throughout the day.
Upholstery
- Pure New Commercial-Grade ECO Wool upholstery - durable, breathable and sustainable
- IN-STOCK Colours : BLACKBUTT(Black)
- Australian eco wool upholstery fabric.
- Special Custom Order - your choice of fabric and colour - wide range on offer
Key Features
- high-back ergonomic task chair
- DUO™ Dual Density Posture Support Seat
- softer rear / firmer front split-cushion construction
- high supportive backrest
- 6-position ratchet back-height adjustment
- approximately 80 mm back-height adjustment range
- adjustable seat angle
- adjustable backrest angle
- forward / backward tilt
- adjustments accessible while seated
- commercial-grade ECO Wool upholstery
- custom fabric and colour options available
- complies with AS/NZS 4438:1997
- AFRDI Level 6 certified
- 135 kg maximum user rating
- 10-year warranty for standard commercial use
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Support
Elevation
Angles
Tilt
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What this means for you when the 4 elements are aligned
| Corrected screen alignment → reduced neck strain |  - S E E™ |
| Better pelvic support → less lower back fatigue |  - S E A T™ |
| Arm positioning → reduced shoulder load |  - A R M S™ |
| Movement support → reduces static load |  - S P A S™ |
R E P O S E™ Outcome
The DUO 400 AXIS RL - HIGH BACK supports Natural R E P O S E™ by bringing the seat, pelvis and backrest into a coordinated supporting relationship.
Support the pelvis first — then allow the spine and chair to work together.
- DUO Comfort™ Dual Density Posture Support Seat - Standard Seat
- Seat Width 515mm
- Seat Depth 500mm
- Seat Height 460-580mm
- Seat Tilt Range 9°
- Back 455W x 570Hmm
Warranty: 10 Years
This product is supplied with a 10-year warranty covering defects in materials and workmanship when used under normal commercial office conditions. The warranty applies to structural and mechanical components. Normal wear and tear on soft or consumable elements is excluded.
DUO 400 AXIS RL - HIGH BACK
- DUO™ Dual Density Posture Support Seat
- high supportive backrest
- 6-position back-height adjustment
- independent seat and back angle control
- AFRDI Level 6
- 135 kg ratin
Who Is It For?
Suitable for users who:
- spend extended periods working at a desk
- prefer a supportive high-back ergonomic chair
- want greater control over pelvic and lumbar positioning
- require independent seat and back adjustment
- benefit from changing sitting angle during the workday
- work in government, corporate, professional or home-office environments
- require commercial-grade seating with long-term warranty support
Problem to Solve
Good seated posture does not depend on the backrest alone.
If the pelvis rolls backwards into the seat, the lumbar spine can follow into a more rounded sitting position even when the chair has substantial back support.
The DUO 400 AXIS RL - HIGH BACK approaches the problem from the seat–pelvis interface.
Its softer rear cushion accommodates load beneath the pelvis, while the firmer front section works with the lower backrest to provide a more stable seating platform.
Rather than relying on excessive softness, DUO uses controlled seat geometry and back support together.
S E A T™ — Primary
Support · Elevation · Angles · Tilt
The DUO 400 AXIS RL - HIGH BACK is a strong application of S E A T™, supporting:
- stable pelvic positioning
- distributed seated load
- adjustable lumbar location
- controlled seat-angle variation
- independent backrest positioning
- movement between supported upright and reclined sitting
- appropriate chair adjustment while remaining seated
The objective is not to hold one rigid posture.
It is to provide stable support with enough adjustment and movement for posture to vary naturally throughout the day.
DUO 400 AXIS RL - HIGH BACK
High-Back Dual Density Posture Support
The DUO 400 AXIS RL - HIGH BACK is a high-back ergonomic task chair built around the proven DUO™ Dual Density Posture Support Seat.
Its split-cushion construction combines a softer rear seating zone with a firmer front section, working together with the lower backrest to support pelvic positioning, spinal alignment and sustained sitting comfort.
The high backrest provides broader support through the torso, while accessible seat, back and tilt adjustments allow the chair to be configured to the individual and adjusted as posture changes throughout the day.
Upholstery
- Pure New Commercial-Grade ECO Wool upholstery - durable, breathable and sustainable
- IN-STOCK Colours : BLACKBUTT(Black)
- Australian eco wool upholstery fabric.
- Special Custom Order - your choice of fabric and colour - wide range on offer
Key Features
- high-back ergonomic task chair
- DUO™ Dual Density Posture Support Seat
- softer rear / firmer front split-cushion construction
- high supportive backrest
- 6-position ratchet back-height adjustment
- approximately 80 mm back-height adjustment range
- adjustable seat angle
- adjustable backrest angle
- forward / backward tilt
- adjustments accessible while seated
- commercial-grade ECO Wool upholstery
- custom fabric and colour options available
- complies with AS/NZS 4438:1997
- AFRDI Level 6 certified
- 135 kg maximum user rating
- 10-year warranty for standard commercial use
Support
Elevation
Angles
Tilt
What this means for you when the 4 elements are aligned
| Corrected screen alignment → reduced neck strain | - S E E™ |
| Better pelvic support → less lower back fatigue | - S E A T™ |
| Arm positioning → reduced shoulder load | - A R M S™ |
| Movement support → reduces static load | - S P A S™ |
R E P O S E™ Outcome
The DUO 400 AXIS RL - HIGH BACK supports Natural R E P O S E™ by bringing the seat, pelvis and backrest into a coordinated supporting relationship.
Support the pelvis first — then allow the spine and chair to work together.
- DUO Comfort™ Dual Density Posture Support Seat - Standard Seat
- Seat Width 515mm
- Seat Depth 500mm
- Seat Height 460-580mm
- Seat Tilt Range 9°
- Back 455W x 570Hmm
Warranty: 10 Years
This product is supplied with a 10-year warranty covering defects in materials and workmanship when used under normal commercial office conditions. The warranty applies to structural and mechanical components. Normal wear and tear on soft or consumable elements is excluded.
