Nautilus Designs
Sigma Mesh Chair
Sigma Mesh Chair
In Stock – Ready to Ship
📦Priority Delivery: 1-3 Working Days
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Overview
Long-session mesh comfort with a premium chrome-base finish – The Sigma Mesh Chair is a medium-back task operator armchair designed for extended desk days, combining an AIRFLOW mesh backrest with an adjustable mesh headrest for breathable, supportive contact where it matters most.
Rated for up to 10 hours with lockable full recline – Built for up to 10 hours’ daily use and rated to 130 kg, Sigma features gas-lift height adjustment, tilt tension + tilt lock, and a fully reclining back function you can lock in position—set on a polished chrome five-star base with smooth PU castors for a refined, dependable setup.
Key Highlights:
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Adjustable mesh headrest to fine-tune upper-neck and head support
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Breathable AIRFLOW mesh backrest for cooler long sessions
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Up to 10-hour daily usage rating for extended workdays
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Tilt tension + tilt lock + full recline for controlled movement or fixed focus
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130 kg rating for dependable stability
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Polished chrome five-star base + PU castors for a premium finish and smooth mobility
Ergonomics
Supportive fit with practical, repeatable controls – Sigma focuses on the adjustments that make the biggest difference for longer sessions, helping you maintain a comfortable, upright sitting position while giving you the option to recline and lock in.
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AIRFLOW mesh backrest with lumbar shaping: Encourages supportive contact through the back while promoting ventilation
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Adjustable mesh headrest: Fine-tune neck and upper-back support to suit your height and monitor setup
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Fixed sturdy armrests: Consistent forearm support to reduce shoulder loading during keyboard and mouse work
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Gas-lift seat height adjustment: Set height so feet sit flat and knees sit comfortably aligned
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Tilt tension + tilt lock: Calibrate recline resistance to your bodyweight and lock into your preferred angle
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Fully reclining back function: Lean back between tasks while keeping movement controlled and supported
Specs & Delivery
Technical Specifications
| Feature | Specification |
|---|---|
| Maximum user weight (static) | 130 kg |
| Recommended daily usage | Up to 10 hours |
| Seat height range | 470–570 mm |
| Seat depth | 530 mm |
| Seat width | 500 mm |
| Backrest height | 655 mm |
| Backrest width | 465 mm |
| Mechanism | Gas-lift seat-height adjustment; tilt tension + tilt lock; fully reclining back function |
| Upholstery | AIRFLOW mesh back + adjustable mesh headrest; padded fabric seat (Black, Blue or Grey) |
| Armrests | Fixed, sturdy armrests |
| Base & castors | Polished chrome five-star base with PU castors |
| Assembly | Supplied for straightforward self-assembly (components included) |
Delivery, returns & what’s included
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🚚Free UK Mainland Delivery, typically within 1–3 working days once dispatched.
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📦14‑Day Easy Returns if the chair isn’t the right fit for you (see full policy for details).
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✅2‑Year manufacturer’s warranty and UK‑based support.
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🎁 Free Ultimate Ergonomics Pack – Included with every chair purchase: Our exclusive 6-page professional guide to setup, posture, and chair care – delivered instantly by email after your order. Designed to help you get maximum comfort and pain relief from your new chair from day one.
Delivery Information
Delivery Information
Orders are processed within 48 hours Monday to Friday, with free delivery available on all orders, typically arriving in 1-3 business days.
Orders placed after 14:00 GMT or on weekends will be processed the next business day, with delivery times potentially varying due to external factors.
Once we ship your order, you will receive an email with tracking information.
We deliver anywhere in the UK (United Kingdom) mainland.
There will be additional charges for the 'offshore domestic regions' and ‘Scottish Highlands’: Channel Islands, Isle of Wight, Isle of Man, Scilly Isles, Scottish Highlands, Scottish Islands and Northern Ireland.
If your address is outside of the UK mainland please contact us for a delivery quote, by email at info@apexcomfort.co.uk
Please visit our Delivery Information page Delivery Policy for more information about our delivery process and delivery times.

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