Front view of black Sihoo M18 ergonomic chair in Australia with black frame and seat, mesh back, and adjustable headrest
Rear view of black Sihoo M18 ergonomic chair in Australia on a white background highlighting its mesh back and support structure
Right-side profile of black Sihoo M18 ergonomic chair in Australia on a white background highlighting its ergonomic silhouette
Angled front-left view of black Sihoo M18 ergonomic chair in Australia on a white background highlighting its ergonomic structure
Rear angled right view of black Sihoo M18 ergonomic chair in Australia on a white background highlighting its supportive backrest design
Woman seated on a black Sihoo m18 ergonomic chair in Australia on a white background highlighting proper posture and comfort
Woman sitting on a black sihoo m18 ergonomic chair in Australia with expandable footrest and headrest highlighting comfort and support
Left-side view of black Sihoo M18 ergonomic chair in Australia with expandable recline and footrest on a white background highlighting adjustable comfort
Front view of black Sihoo M18 ergonomic chair in Australia with built-in footrest on a white background highlighting adjustable comfort
Rear view of black Sihoo M18 ergonomic chair in Australia with footrest on a white background highlighting its supportive mesh back design
Angled front-left view of black Sihoo M18 ergonomic chair in Australia with footrest on a white background showcasing its ergonomic form
Full front view of grey Sihoo M18 ergonomic chair in Australia on a white background highlighting its ergonomic seat and armrest design
Full back view of black Sihoo M18 ergonomic chair in Australia on a white background highlighting its mesh backrest and support design
Rear angled left view of black Sihoo M18 ergonomic chair in Australia on a white background highlighting its supportive backrest design
Angled front-right view of black Sihoo M18 ergonomic chair in Australia on a white background highlighting its modern ergonomic design
Left-side view of gray Sihoo M18 ergonomic chair in Australia on a white background highlighting its ergonomic profile
Front-left view of gray Sihoo M18 ergonomic chair in Australia on a white background highlighting its clean ergonomic design
Front-right view of gray Sihoo M18 ergonomic chair in Australia on a white background highlighting its sleek ergonomic design
Right view of black Sihoo M18 ergonomic chair in Australia with expandable recline on a white background highlighting adjustable comfort
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SIHOO M18 Ergonomic Office Chair

$339.00 $499.00

338 reviews
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Premium Ergonomic Office Chair for Work and Home Offices

Rated 4.6 out of 5 by 333 Australian buyers, the M18 pairs dual lumbar support with a breathable mesh back built for long sessions at your desk. It fits users from 150cm to 190cm and holds up to 136kg. Reclining runs 110 to 126 degrees on a tilt-lock mechanism, so you can lean back for a break and lock it in place.

Want to recline without leaving your desk? The Black with Leg Rest variant adds a fold-out footrest for the same dual-lumbar support.

Frequently Asked Questions About the SIHOO M18 Ergonomic Office Chair

Hours at your desk. Under four hours a day, the base M18's 2D armrests and dual lumbar support are enough. Six hours or more, the M18 Pro's 4D linked armrests and self-weight sensing recline are worth the extra $90.

The SIHOO M18 ergonomic chair is suitable for home office setups, study environments, and professional workspaces where ergonomic comfort and posture support are important during daily work.

Yes. The Black with Leg Rest variant adds a fold-out footrest.

Yes. The SIHOO M18 includes adjustable armrests that help support different sitting positions and workspace setups.

The SIHOO M18 uses breathable mesh materials designed to improve airflow and comfort during long sitting hours and warmer Australian conditions.

Seat height 46 to 55cm, seat width 51cm, seat depth 46cm. Overall chair height is 107 to 130cm.

136kg (300lb), suited to users from 150cm to 190cm tall.