Sihoo M18 Pro Ergonomic Office Chair

$369.00 $499.00

24 reviews

Free shipping with delivery in 1-5 days.
Color
Footrest Option
Rated for 6+ hour desk days. Free delivery, 3-year warranty.
SIHOO M18 Pro Ergonomic Office Chair: 4D Linked Armrests, High-Back Breathable Mesh, Adaptive Dynamic Lumbar Support

The M18 Pro builds on the base M18 with seven upgrades: adaptive self-weight sensing recline, 4D linked armrests, moth-shaped elastic lumbar support, a dual-joint three-section headrest, a W-shaped comfort cushion, a multi-function reclining pedestal, and a heavy-duty PA nylon base. It meets BIFMA testing standards.

Perfect for:

  • Home offices & hybrid work setups
  • High-performance teams & boardrooms
  • Gamers chasing pro-level ergonomics
  • Anyone upgrading from the beloved M18 to the ultimate next step

Why the M18 Pro?

Built for desk days past six hours, the M18 Pro adds self-weight sensing recline and 4D linked armrests over the base M18, for $90 more. It carries the same 3-year warranty and 136kg weight rating as every M-series chair.

M18 ergonomic chair in Australia showing adaptive mechanism with labels and features highlighted in a text overlay.
M18 ergonomic chair in Australia displaying text labels of 7 experiential upgrades and 3 classic continuations.
Ergonomic chair in Australia with text overlay highlighting 7 experiential upgrades.
M18 ergonomic chair in Australia highlighting non-linked reclining as a common non-ergonomic pain point.
M18 ergonomic chair in Australia featuring 4D linked armrests, ideal for work and leisure.
Collage of two photos showing reclining features of an ergonomic chair in Australia, including support for longer arms and napping.
M18 ergonomic chair in Australia equipped with an adaptive mechanism, featuring text overlay, labels, and highlighted features.
M18 ergonomic chair in Australia featuring a moth-shaped elastic lumbar support design with highlighted features.
M18 ergonomic chairs in Australia with features and labels displayed, three people seated on the chairs.
Ergonomic chair in Australia with dual-joint three-section headrest, displaying labels and features.
Ergonomic chair in Australia reclined to 134 degrees, showcasing a safer angle for comfort and support.
Ergonomic chair in Australia with text overlay highlighting 3 classic continuations.
M18 ergonomic chair in Australia featuring moth-shaped elastic lumbar support with labels highlighting its features.
*The Footrest is not available in Without Built-in Footrest.
M18 ergonomic chair in Australia featuring a 4-position liftable backrest with labels and highlighted features.
Ergonomic chair in Australia featuring a W-shaped seat cushion with text overlay highlighting its design.
Ergonomic chair in Australia with Yida mesh fabric featuring feedback from millions of users on label.
M18 ergonomic chair in Australia displayed with size specifications and detailed product parameter labels.