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Your choiceStealth Shadow High Mesh Back Ergonomic 24 Hour Posture Office Chair
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Stealth Shadow High Mesh Back Ergonomic 24 Hour Posture Office Chair

Ergonomic posture office chair rated for 24 hour use with a 170kg weight capacity, in all-black mesh. Twin lever synchronised tilt with multi-position lock, height and depth adjustable lumbar support, seat slide and multi adjustable arms with soft pivoting pads. Black mesh or black Airmesh seat, with or without a height adjustable headrest.

£409.00RRP £1042.00ex. VAT
Ready to add: With Headrest · Black Airmesh

Description

Ergonomic posture office chair rated for 24 hour use with a 170kg weight capacity, in all-black mesh. Twin lever synchronised tilt with multi-position lock, height and depth adjustable lumbar support, seat slide and multi adjustable arms with soft pivoting pads. Black mesh or black Airmesh seat, with or without a height adjustable headrest.

Contract seating for demanding environments

The Stealth family has become a firm favourite for a simple reason: it is a heavy duty contract chair that takes posture seriously. A 170kg maximum weight capacity and a 24 hour usage rating make it at home in control rooms, monitoring stations and shift-based operations, while the generously proportioned contoured seat and backrest accommodate most users without compromise. Matching visitor chairs carry the same build quality, so a whole meeting room can share the standard.

Every adjustment where it should be

Good posture is personal, so the Stealth Shadow adjusts almost everywhere. The lumbar support moves for both height and depth, landing firm support exactly where your lower back wants it. The twin lever mechanism gives synchronised tilt with a multi-position lock and anti-shock, the weight tension control matches the recline to your build, and the ergonomic seat slide extends the seat depth from 50cm to 53cm for longer legs. Multi adjustable arms with soft pivoting pads set elbows at desk height, and the optional headrest adjusts for height to look after your neck through a late shift.

The Shadow treatment

Shadow means all black, everywhere: a black high mesh back over a black frame, with your choice of seat finish. Pick breathable black mesh to match the back, or black Airmesh for a softer sitting surface with the same cool-running character. Either way the mesh keeps air moving through hours of continuous sitting, which is precisely when it matters.

Right for your business

This mesh ergonomic 24 hour office chair suits operations that cannot afford tired seating: 24 hour teams, control and security desks, and anyone equipping proper ergonomic chairs for people of different builds sharing the same seat. One clear price, full specifications on the page, and no sales calls required.

Seat and adjustment

  • Contoured 52cm wide seat with gas height adjustment. A generous, shaped sitting area that sets easily to the right height for your desk.

  • Ergonomic seat slide, 50cm to 53cm deep. Extend the seat for longer legs so thighs get full support without pressure behind the knees.

  • Weight tilt tension control. Dial the recline resistance to match your build, so the tilt supports rather than fights you.

Backrest and posture support

  • High mesh back, 54cm wide. Breathable, contoured support across the whole back through round-the-clock sitting.

  • Height and depth adjustable lumbar support. Tune both where the lower back support sits and how firmly it presses.

  • Twin lever synchronised tilt with multi-position lock. Seat and back recline together naturally, lock at your chosen angle, and anti-shock stops any spring-back.

  • Optional height adjustable headrest. Proper neck support for reclined working; choose the chair with or without.

Armrests

  • Multi adjustable arms with soft pivoting pads. Height adjusts from 66.5cm to 76.5cm and width from 49.5cm to 57cm, so elbows stay supported and shoulders relaxed.

Size, capacity and usage

  • 78cm wide, 68cm deep footprint. Full-size contract seating that still fits a normal workstation.

  • 170kg maximum weight capacity. A genuinely heavy duty rating, well above the standard office chair.

  • Recommended for 24 hour use. Built and rated for continuous sitting, not just the working day.

  • 27kg overall weight. Contract-grade construction you can feel the moment you sit down.

Guarantee

  • 5 year guarantee on mechanical components, 2 years on fabric and foam. Long cover on the moving parts that matter most.

Explore our heavy duty and 24 hour chairs for round the clock seating, or the full ergonomic office chairs range.

Specification

Dimensions, Weight & Usage
Overall Width78cm
Overall Depth68cm
Overall Height113cm - 151cm
Product Weight27kg
Maximum Weight Capacity170kg
Recommended Usage24 hours
Appearance
MaterialAirmesh & Mesh & Metal, Mesh & Metal
ColourBlack
Seat Dimensions
Seat Width52cm
Seat Depth50-53cm
Seat Height47cm - 60cm
Gas Height AdjustmentYes
Backrest Specification and Dimensions
Back TypeHigh
Back Width54cm
Back Height58cm - 85.5cm
Height Adjustable BackNo
Permanent Contact BackrestNo
Independent Seat & BackNo
Integral Lumbar SupportYes
Adjustable Lumbar SupportYes
Headrest IncludedYes, No
Headrest TypeHeight Adjustable
Adjustable HeadrestYes
Arm Specifications and Dimensions
Arms IncludedYes
Arm TypeMulti Adjustable
Arms RemovableNo
Arm Width49.5-57cm
Arm Height66.5-76.5cm
Adjustments
Seat SlideYes
Seat Depth AdjustmentYes, No
Synchro TiltYes
Anti-ShockYes
Tilt Tension AdjustmentYes
Guarantee
Mechanical Components5 Years
Fabric & Foam2 Years

Downloads

Reviews

5.0Rated 5 out of 51 review
5 stars1
4 stars0
3 stars0
2 stars0
1 star0
  • 5 out of 5Francesca7 April 2026

    Best chair I have sat in

    Rated for round the clock use and it shows in the build. Every adjustment you could want and the airmesh back is comfortable for a full shift. Expensive and worth it.

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