Best for: Executives, managers, and professionals who sit long hours and want a premium high-back chair with fully adjustable armrests, dynamic lumbar support, and a 180 kg capacity.
Premium all-day comfort, built for the executive desk. The Sihoo Doro C300 (A3) is a high-back executive chair with premium whole mesh upholstery, a dynamic lumbar support system, and 6D bionic joint armrests. A waterfall seat, a sliding seat depth, and a gravity-sensing recline with a 4-position lock give you support through long days and short breaks. It comes in a Classic version and a version with a built-in footrest.
Key Features
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Premium whole mesh upholstery: breathable fabric over a PA and fiber mesh frame for the backrest and lumbar support.
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Flexible backrest with dynamic lumbar support: a 4-level height adjustment, and a lumbar system that moves with your lower back.
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6D bionic joint armrests: soft padded surfaces, adjustable in height, width, depth, and tilt (up to 35°).
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Waterfall seat cushion: reduces pressure on the thighs and hips.
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Sliding seat depth adjustment: set the seat length to fit your legs.
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Gravity-sensing recline with a 4-position lock: recline up to 138 degrees and lock at the angle you prefer.
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Class 4 gas lift: SGS and BIFMA certified.
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Built to last: polished aluminum base, PU nylon castors, and a 180 kg (about 396 lbs) maximum load.
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Footrest option: choose the version with a built-in footrest.
Specifications
| Best for |
Long hours in the office, WFH, and executive use |
| Colors |
Black-black and Grey-white |
| Style |
Classic (without footrest) or with built-in footrest |
| Chair type |
Executive high-back ergonomic office chair |
| Overall size (L x D x H) |
Approximately 0.70 m x 0.70 m x 1.14 m to 1.29 m |
| Upholstery |
Premium whole mesh fabric |
| Backrest and lumbar frame |
PA and fiber mesh |
| Backrest |
Flexible, 4-level height adjustment, dynamic lumbar support system |
| Armrests |
6D bionic joint; height, width, depth, and tilt (up to 35°) |
| Seat |
Waterfall design; sliding seat depth adjustment |
| Recline |
Gravity-sensing, 4-position lock; up to 138° |
| Gas lift |
Class 4, SGS and BIFMA certified |
| Base and castors |
Polished aluminum base; PU nylon castors |
| Weight capacity |
180 kg (approximately 396 lbs) |
| Certifications |
BIFMA, SGS, TÜV Rheinland, European EN 1335, and REACH |
| Warranty |
Minimum 2 years structural warranty, with local after-sales support |
| Where to try it |
Experience Stores in San Juan, Manila, Parañaque, Pampanga, Davao, and Cebu |
How the C300 (A3) Compares
The Doro C300 (A3) is a premium executive chair with 6D armrests and dynamic lumbar support. If you want the next step up, the Doro C300 PRO V2 adds the DynaCore full-body support system, 8D armrests, dual self-adaptive lumbar support, and a retractable built-in footrest. For a flagship recline and upholstery, see the Doro C500 Classic, or browse the full Doro Series.
Why Buy From Things We Use PH
- Official distributor of Sihoo in the Philippines
- 2-year warranty with every purchase
- Try the chair at one of our 6 Experience Stores before you buy
- GCash, bank transfer, and credit card accepted
- Need help assembling? Watch our official assembly guide
Frequently Asked Questions
What is the weight capacity of the Doro C300 (A3)?
The chair has a maximum load capacity of 180 kg (approximately 396 lbs), with a Class 4 gas lift that is SGS and BIFMA certified.
Does the Doro C300 (A3) come with a footrest?
It is available both ways. Choose the "With Built-in Footrest" style if you want one, or the "Classic" style if you don't.
How far does the chair recline?
It reclines up to 138 degrees. The gravity-sensing mechanism has a 4-position lock, so you can set the backrest at the angle you prefer.
What are 6D armrests?
The bionic joint armrests adjust in height, width, depth, and tilt (up to 35°), and have soft padded surfaces for comfort during long sessions.
Can I adjust the seat depth?
Yes. The seat slides forward and back, so you can fit it to your leg length. The waterfall-shaped seat edge also reduces pressure on the thighs and hips.
Is the Doro C300 (A3) certified?
The chair lists BIFMA, SGS, TÜV Rheinland, European EN 1335, and REACH certifications, and its Class 4 gas lift is SGS and BIFMA certified.
Which colors are available, and is it in stock?
The chair comes in Black-black and Grey-white. Availability changes by color and style. If your choice shows as sold out, select "Notify me when back in stock" or message us to ask about pre-orders. Product color may vary slightly due to photographic lighting.
Does the chair come assembled?
You can choose to have it delivered boxed or assembled (assembly depends per location). Message us when you order.
How long is the warranty?
Every chair from Things We Use PH comes with a minimum 2-year structural warranty and local after-sales support.
Can I try the Doro C300 (A3) before buying?
Yes. Visit any of our Experience Stores in San Juan, Manila, Parañaque, Pampanga, Davao, or Cebu. Display models may vary by store, so message us first to check availability.
What payment methods do you accept?
We accept GCash, bank transfer, and credit card.
