SIHOO Doro S300 Ergonomic Office Chair

Office chairs are usually bought at the precise moment the old one develops a squeak, a lean, or the moral character of a wobbly pub stool. Then comes the mildly absurd task of choosing a replacement from a sea of black mesh and optimistic words about posture. We chose the SIHOO Doro S300 because it makes a concrete case through adjustment rather than vague ergonomic incense.

Its centrepiece is an anti-gravity recline mechanism using aerospace-grade glass-fibre elastic plates, with three stated positions at 100°, 110° and 130°. Add dual dynamic lumbar pads, a five-position telescopic backrest and armrests with six types of adjustment, and this is clearly intended for the person whose desk setup has become a long-term tenancy.

The S300 is specified for users from 150 to 190 cm tall, which is refreshingly useful information in a category that often treats the human body as a decorative afterthought. Its Italian velvet mesh is woven with DuPont elastomers and sits on a four-spring suspension system; the specifications suggest a chair built around flexible support rather than one fixed pose all day.

There is, naturally, some domestic reality to consider. At 26.2 kg, this is not a dainty little perch to wheel between the dining table and the spare room whenever a video call appears. But for a dedicated workspace, we think the Doro S300 is a properly considered ergonomic office chair: complicated in the useful way, like a good Swiss Army knife, only with fewer opportunities to cut yourself.