Sihoo Doro C300: Ergonomic office chair with dynamic lumbar support launches in Germany

Updated by Timo Altmeyer on the 2. October 2025

Sihoo is expanding its European portfolio with the Sihoo Doro C300, an ergonomic office chair for frequent sitters. The model combines a full-surface mesh design with dynamic lumbar support, providing greater comfort for work, creativity, and gaming.

Siho Doro C300 Hero

Dynamic lumbar support instead of a rigid backrest

The Sihoo Doro C300 differs from traditional chairs primarily in its movable back and lumbar support. According to Sihoo, a BM (body movement tracking) system detects posture and automatically adjusts the support in all directions of movement, eliminating the need for constant readjustment.

Added to this is a flexible backrest that allows for left- or right-handed movement, as well as an ultra-wide 3D mechanical headrest with an extra-wide support surface. According to the manufacturer, it can be adjusted in several directions, ensuring comfortable support even when leaning sideways, for example, while reading or watching a video.

Siho Doro C300 woman sitting in chair

Sihoo also takes an ergonomic approach with its 4D-coordinated armrests. They're movable in four dimensions, allowing them to be adjusted in height, depth, and angle, all in sync with the backrest. Anyone who frequently switches between typing, mouse work, and relaxing recline will quickly notice that rigid armrests often get in the way.

Seating comfort through mesh and intelligent weight sensors of the chassis

When it comes to materials, Sihoo relies on a continuous mesh design that extends from the seat, across the backrest, and all the way to the headrest. The breathable structure is designed to prevent unpleasant sweating, even during extended periods of sitting.

A special feature, usually found in higher-priced models, is built into the chassis. Integrated intelligent weight sensors automatically regulate the resistance when reclining based on your body weight. The seat itself is designed in a waterfall shape to reduce pressure on the thighs and hips.

Siho Doro C300 man sitting in chair

Work, creativity, gaming

Sihoo employs a research and development team of more than 100 experts in the fields of ergonomics, technology, and health. In-house studies are conducted at the company's own Ergonomics Research Institute. Every product undergoes testing in the approximately 1.000 m² testing laboratory before it goes on sale. The chairs also carry international certifications such as BIFMA and SGS.

With this in mind, Sihoo promotes the Sihoo Doro C300 as a versatile all-rounder, whether for home office, creative projects, or long gaming sessions. Those who spend a lot of time sitting should not only be comfortable but also healthy. The brand motto fits this perfectly: "Dynamic comfort for your every move."

Siho Doro C300 in Black

Price and availability

The Sihoo Doro C300 is available in black or white and costs €309,99. Those looking for even more comfort can get a version with a footrest for an additional €40.

 Additionally, the Sihoo Store autumn promotion "Golden Deals for Golden Days" runs from September 20th to 30th. It offers up to 18% off, or up to €100 off, on selected products. The Sihoo Doro C300, normally available for €309,99, is available for €279,99 during the promotion. With the exclusive discount code SihooTR, you can get an additional 6% off, bringing the final price to just €263,19.

It is available both from the official Sihoo Store  as well as about  Amazon  (Use universal discount code PSIHOOSIX for an additional 6% discount.) The package includes a 30-day return policy, a three-year warranty, and free shipping.

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