SIHOO M18 Ergonomic Chairs Collection
The SIHOO M18 Series is rated 4.6 out of 5 by 332+ Australian buyers. Two builds cover two kinds of desk day: the M18 from $279 for shorter sessions, and the M18 Pro from $369 for a full workday. Both use breathable mesh and adjustable lumbar support, and both ship with a 3-year warranty.
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SIHOO M18 Ergonomics Task Office Chair
The SIHOO M18 holds its S-shaped backrest and adjustable lumbar support through a full morning at your desk. It's rated 4.6 out of 5 by 332+ buyers and starts at $279. Want to recline for a break without leaving your desk? The Black with Leg Rest variant adds a fold-out footrest for $339.
Sihoo M18 Pro Ergonomic Office Chair
If your day runs past six hours, the M18 Pro is built for it. It adds [CONFIRM] self-weight recline and 4D linked armrests over the base M18, for $90 more at $369.
| Best For | Recommended Chair | Why It Fits | |
|---|---|---|---|
| At your desk under 4 hours a day | M18, from $279 | S-shaped backrest and adjustable lumbar support suit shorter, in-and-out sitting sessions. | Shop M18 – $279 |
| At your desk 6 hours or more | M18 Pro, from $369 | Self-weight recline and 4D linked armrests provide more adjustment for a full workday. | Shop M18 Pro – $369 |
| Reclining during breaks without leaving your desk | M18 with Leg Rest, $339 | The built-in footrest folds out during breaks and stores away when it is time to focus. | Shop M18 with Leg Rest |
How to Use a SIHOO M18 Series Chair Properly
How do I adjust the SIHOO M18 for the best ergonomic support?
To get the most ergonomic benefit from your SIHOO M18:
- Adjust so your feet are flat on the floor and your knees are at a 90° angle.
- Align the built-in lumbar support with the curve of your lower back to reduce pressure.
- Position the 3D armrests so your elbows rest naturally at desk level, preventing shoulder strain.
What’s the best way to use the recline and tilt features?
The SIHOO M18 offers a smooth reclining mechanism with tilt tension control:
- Use the tilt lock to set your preferred recline angle (ideal for reading or relaxing).
- Adjust the tilt tension knob underneath the seat to control how easily the chair leans back—loosen for a relaxed recline, tighten for firm support.
- Reclining for a few minutes during breaks can help relieve pressure on your spine and keep you energised.
Can I sit for long hours in the M18?
Yes, the SIHOO M18 is built for extended use—but proper setup and posture are key:
- Sit with your back fully supported by the mesh backrest and lumbar support.
- Avoid slouching or leaning forward for long periods—rely on the chair’s ergonomic design to support your posture.
- Take short standing breaks every 60–90 minutes to improve circulation and reduce fatigue.
Frequently Asked Questions About Sihoo M18 Ergonomic Chair
The SIHOO M18 ergonomic chair is designed for home offices, study setups, and professional workspaces with ergonomic support features that help improve comfort during long sitting hours.
The SIHOO M18 Series includes ergonomic features such as breathable mesh backrests, adjustable lumbar support, reclining functions, adjustable armrests, and supportive headrests designed for daily comfort and posture support.
Yes. The SIHOO M18 ergonomic chair is designed to support posture and comfort during extended sitting sessions for work, study, and home office use.
The split is hours at your desk, not features for their own sake. Under four hours a day, the base M18 covers you. Six hours or more, the M18 Pro's extra adjustability is worth the $90 difference.
Yes. The Black with Leg Rest variant adds a fold-out footrest for $339, $60 more than the base M18.
No. Our Australian range covers the M18, M18 Pro, M56, M57, and the Doro series. The B100 is a separate global listing and isn't sold or supported through Sihoo Australia.