SIHOO
SIHOO Doro C300
Ideal for: Full workdays, maximum ergonomics without a premium price
It's the mid-range chair I'd put first for long days if the budget allows paying more than a basic chair.
View on Amazonfor SIHOO Doro C300 (opens in a new tab)Buying summary
Best useAnyone wanting a dynamic lumbar, mesh and an aluminium base without entering premium prices.
Avoid ifYou need adjustable seat depth or you're clearly over 190 cm tall.
Direct alternativeFlexiSpot C7 Lite if you want more lumbar adjustments in a more compact chair.
Verified capacitySupports up to 150 kg
Warranty3-year warranty listed in verified specs
How this product is assessed
- Scores are based on verified specifications, category fit and editorial weighting for remote-work use.
- Product pages avoid unverified price claims; always check current price and availability before buying.
- English product profiles use structured verified data unless a fully edited product review is available.
Category scores
editorial · specs based8.6/10 · overall score
Technical specs
Ergonomics and adjustments
| Lumbar support | Dynamic self-adjusting |
|---|---|
| Armrests | 3D |
| Adjustable seat depth | No |
| Max recline | 130° |
| Mechanism | Synchronized tilt |
Build and materials
| Backrest | Mesh |
|---|---|
| Base | aluminum |
| BIFMA certification | Yes |
| Maximum supported weight | 150 kg |
| Product weight | 23 kg |
Dimensions and warranty
| Width | 51 cm |
|---|---|
| Depth | 43 cm |
| Warranty | 3 years |
What the community says
Broad positive consensus in specialist reviews (Tom's Guide, Windows Central, Apple Insider): considered the best ergonomic chair under €400 thanks to the self-adjusting lumbar. Recurring criticism: armrests easy to nudge sideways by accident.
Good fit
- People who sit 6-10 h a day and want lumbar support with no manual adjustment
- Users up to 185 cm seeking breathable mesh year-round
- Anyone who values BIFMA certification and an aluminium base at a contained price
Not ideal for
- A budget below €280
- Users over 190 cm (the headrest sits low)
- Anyone needing adjustable seat depth
Strengths
- Self-adjusting dynamic lumbar support
- Dense BM mesh that keeps its shape
- 3D armrests
- Supports up to 150 kg
Weaknesses
- High price within the range
- Firm mesh for the first few weeks
Verified sources
- sihoo.comofficial source · checked 2026-06-06
- tomsguide.comreview · checked 2026-06-06
- ralphsway.comreview · checked 2026-06-06
Data source: verified product specs · checked 2026-06-25. Editorial scores are based on specs and category fit. "n/a" means no verified data; check the manufacturer or retailer page before buying.