Was looking for a good but affordable chair for a while, decided on the Doro C300, quick delivery and the instructions on how to put it together was simple enough. Looking forward to trying it out once my desk arrives.
Sihoo Doro C300 Ergonomic Office Chair - Black / Standard
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With its extensive adjustability, the C300 is tailored to fit users ranging from 155 cm to 190 cm in height and 50 kg to 100 kg in weight, as though it were custom-designed for each individual.
With three adjustable angles (110°, 120°, and 130°), you can effortlessly switch from focused work to relaxation, with the added option of a footrest for enhanced comfort.
Crafted from premium materials, the C300 is BIFMA, SGS, and TÜV certified, with each unit thoroughly tested to ensure years of ergonomic comfort.
The C300 is designed with an adaptive lumbar support that automatically adjusts to your posture, providing continuous spinal support without manual adjustment. The backrest, headrest, armrests and seat are made of breathable mesh, ensuring comfort during long working hours.
The 4D armrests can be moved up and down, forwards and backwards, side to side, and tilt in sync with the backrest. The backrest height is adjustable, with three reclining angles (110°, 120° and 130°), so you can switch easily between working and relaxing positions.
The chair measures approximately 28" W × 28" D × 42–49" H. The seat depth can be adjusted between 17.1" and 18.1", while the backrest height ranges from 18.1" to 21.6". It supports a maximum weight of 136 kg, making it suitable for users of varying builds, generally between 155 cm and 190 cm in height.
The C300 features a premium mesh fabric combined with a sturdy plastic frame and an aluminium alloy base. It has passed BIFMA, SGS and TÜV safety certifications, ensuring both comfort and long-term durability.
The assembly process is straightforward, with all parts and tools clearly labelled for ease of use. Most users complete it within 30–45 minutes. While the process is generally simple, attaching the armrests may require a bit more attention. For additional guidance, an instructional video is available to assist you with the setup.
The Sihoo Doro C300 includes a 3-year warranty. Depending on the retailer, a one-year return policy may also be offered for added peace of mind.



