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SIHOO

SIHOO Doro C300 Ergonomic Office Chair with Ultra Soft 3D Armrests

Based on 1,321 reviews
Condition: New
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$299.48
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Availability: In Stock.
Fulfilled by SIHOO
Arrives Wednesday, Nov 11
Order within 13 hours and 30 minutes

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At a glance

Condition
New
Color
Black
Size
Pack of 1
Model
A3-C500
Dimensions
15.35 x 23.23 x 30.31 in
Weight
23.1 kg
Material
Mesh
In the box
Arm Pad

Features 4

  • Innovative Ergonomic ChairSIHOO's latest office chair has been developed using the latest technology to provide comfortable sitting while maintaining the correct posture for a healthy lifestyle. The ergonomic chair features an automatically adjustable 3D headrest, automatically adjustable lumbar support, linked 3D armrests, intelligent gravity structure and automatic adjustment. Following the concept of a "chair that sits on your body", the soft backrest and breathable mesh seat design provide a comfortable sitting experience, even after long hours of sitting.
  • Wide Angle Adjustable Headrest and Trackable BackrestThe SIHOO A3 office chair features a 3D headrest with automatic macro adjustment, which can be adjusted 4.5cm up and down, 6.5cm back and forth and 20 angle. Made of soft mesh material, it is designed with the latest triangular soft elastic frame with triangular support straps from the shoulders to the lumbar area on both sides to support the back. The 4-position adjustable 6cm liftable backrest is suitable for people of all heights. When the backrest is adjusted to the highest level, it automatically reverts to 1 level.
  • Domino auto-adaptive lumbar support and 3D linkage armrestThe SIHOO A3 office chair features a 3D automatic macro-adjustable headrest that can be adjusted 4.5cm up and down, 6.5cm back and forth and 20 angle. Made of soft mesh material, it is designed with the latest triangular soft elastic frame with triangular support straps from the shoulders to the lumbar area on both sides to support the back. The 4-position adjustable 6cm liftable backrest is suitable for people of all heights. When the backrest is adjusted to the highest level, it automatically reverts to 1 level.
  • Intelligent gravity mechanismAutomatic adjustment functionIf it is the tilt function of the ergonomic chair, it is the key construction component. SIHOO's newest chair features an intelligent gravity mechanism with weight-adjustable resilience, making it easy to operate at any weight. It has a 2-step auto-adjustment function and can be tilted to a maximum of 20 degrees from 92 degrees - 100 degrees - 112 degrees. Place your body on the back of the chair and enjoy a comfortable rocking motion. Or tilt it up to 112 degrees between work sessions for a short break and relaxation!

Description

FRESH INVENTORY Doro C300 Pro V2 with Footrest FRESH INVENTORY B100 with Dynamic Lumbar Support First Full-Body Adaptive Support Erognomic Chair The first ergonomic office chair exclusively for you Dynamic lumbar support provides adaptive support when you lean back deeply. It adjusts to your body's position, offering the right amount of support and ensuring comfort during long-term sitting. SIHOO Doro C300 SIHOO B100 Doro C300 Pro V2 Footrest SIHOO B300 Pro SIHOO M57 SIHOO M59AS SIHOO M18

Specs 45

Brand SIHOO
Color Black
Material Mesh
Product Dimensions 15.35"D x 23.23"W x 30.31"H
Size Pack of 1
Brand Name SIHOO
Additional Features Adjustable,Durable,Flexible
Unit Count 1 Count

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Nov 11

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

Excellent Ergonomic Chair Excellent Ergonomic Chair
Color: Black Size: Pack of 1
Review Image by Chelsea Liu
Very comfortable, easy to assemble, and highly adjustable. Great back support for long hours of work and gaming. The build quality feels premium, and the chair is sturdy and supportive. Definitely worth the price and highly recommended.
Reviewed in the United States on June 8, 2026 Reviewed in the United States on June 8, 2026 by Chelsea Liu
Do not miss
Color: Black Size: Pack of 1
I bought the SHIOO DORO C300 ergonomic office chair a month ago, and I have to say that I am very satisfied with it. It is one of the most comfortable and supportive chairs that I have ever used. Here are some of the features that I like about this chair: • The ultra soft 3D armrests are adjustable in height, and angle, so I can find the best position for my arms and shoulders. They are also padded with high-density foam, which feels very soft and cozy. • The dynamic lumbar support is a unique feature that automatically adapts to my posture and movements, providing optimal support for my lower back. It helps me maintain a healthy spine alignment and prevent back pain. • The seat cushion is made of breathable mesh fabric, which keeps me cool and dry even after long hours of sitting. It is also contoured to fit my body shape, and has a waterfall edge that reduces pressure on my legs. • The chair has a sturdy and stable base, with five smooth-rolling casters that can move on any surface. It also has a pneumatic height adjustment lever that lets me easily raise or lower the seat. Overall, I think the SHIOO DORO C300 ergonomic office chair is a great product that offers excellent value for money. It is well-designed, well-made, and well-functioning. It has improved my sitting experience and productivity at work. I would highly recommend it to anyone who is looking for a comfortable and ergonomic office chair. ... show more
Reviewed in the United States on September 7, 2023 by Chunrong Zhang
A solid ergonomic office chair pro for day to day comfort
It feels sturdy and well supported when seated. Especially appreciate the lower back and neck support. The lower back support is angled ergonomically so that a push can be felt as the body leans back. The neck support is highly adjustable that it almost guarantees a comfortable setting for different postures and body types. The other parts worth mentioning are foot rest and arm rests. The foot rest has 15kg weight limit as labeled, but should be good enough for normal use. When the foot rest is fully extended out with maximum recline of the seat back, it works as a solid lounge chair substitute. Arm rests are insanely adjustable too. In fact, they are the most versatile ones I have ever seen. I used to spent lengthy time on a Herman Miller Cosm. Its build quality and material feel are better than this Sihoo, but this one offers more seating comfort and functionality. Considering the price difference, it will be hard not to recommend this one. ... show more
Reviewed in the United States on March 30, 2026 by WS
Solid Chair for Medium to Average Sized Person
Color: Black Size: Pack of 1
I would have given the chair 5 stars had the bottom/seat of the chair pulled in and out, since no one persons legs are exactly the same in length between hip and knee. But, not many chairs, if any, have this capability in this price range. Putting the chair together was simple, and the screw package is well marked, making it fool proof knowing where which screws go where. As well as there being extra screws just in case, something you don't often see. They even included white cloth gloves so you don't mark up the metal etc...highly unusual addition. Comfort wise, is it the most comfortable chair I have ever sat in, in my opinion no, but it is well designed and solidly built, especially for the price tag. It does have excellent back support, and the mesh seat is comfortable. Although, if you tend to be wide at the bottom, this chair may not be for you. I'm of fairly average size and the width, and the chair just makes it for a good fit. Dare I say if you have a European body type, this chair is perfect. The chair does force you into a position of good posture, arguably in a good way, and you can easily lean back and lounge. The waterfall seating is an added bonus for those who are prone to circulation issues in the legs and or feet. Another aspect of the design that is good, is that the chair isn't as bulky as I thought it might be based on the pictures. It's quite sleek and will fit in an average to small sized space well. I've seen a few reviews where some talk about the Ultra soft arm rests?? Perhaps my arm rests are different (highly doubtful) but I would not at all qualify them as ultra soft. Are they comfortable and with good customization for height and angle, yes. But, are they ULTRA soft, no way, not even close, they are soft-ish. The chair is new, so I don't know what the longevity factor is yet? But, if I can get a solid few years out of it, then I would say it was a very solid buy. ... show more
Reviewed in the United States on September 23, 2023 by Amazon Customer
Extremely uncomfortable!!
Color: Black Size: Pack of 1
This is the most unforgiving, uncomfortable office/desk chair I have ever had the displeasure of sitting in. I could only sit in this chair about 20 minutes at a time when it first arrived due to tailbone and lower back pain. I purchased two different cushions to sit on in the chair and can now sit about 35 minutes before the tailbone and lower back pain is so bad I must get out of the chair. I work from home, 8 hours per day, and sit and stand intermittently throughout the day. Unfortunately I did not keep the box the chair arrived in or I would have disassembled it and returned the chair. I purchased this chair based on the reviews and statements that the chair was ergonomic in design and comfortable. I applaud whoever is able to sit comfortably in this chair for any length of time. I have wondered, are the reviews fake? Staged? My old chair I was planning to get rid of is more comfortable than this one. I have bought a new standing desk, monitors, monitor and laptop holders to improve my productivity and comfort. Then there is “the chair”. The purchase of this chair was the last of the money I had to revamp my office so I guess I am stuck with it. After reading this review and you still plan to order this chair, please keep the box and take pictures of all the parts in the box before removing each piece to get it back in the box if you need to return it. It took about 45 minutes to put together. Thank you for your time. ... show more
Reviewed in the United States on November 25, 2023 by Amazon Customer
Comfortable and EASY to assemble
Color: Black Size: Pack of 1
Some reviews complain about the assembly, and I imagine this is due to the chair's many parts and many screws. For example, the base of the chair has six parts, not including the wheels: a center piece, and five legs, each leg attached to the center piece with two screws. I've had other (cheaper, weaker) chairs where this is delivered as a single complete piece, or as pieces that slot together without screws. Each arm also has four screws - two attaching the separate pieces of the arm, and then two more to attach it to the seat. The design is also generous with spacers to support the screws - the arms have five spacers each. However, the single most annoying part of assembling an office is attaching the back to the seat. Generally the attachment is purely with screws, so you have to fully hold two heavy objects close together in an awkward way while you get the screws in. I've done this many times with many chairs and it's always been a massive dreaded pain. This chair's different: the back slides onto a mount attached to the seat, and then, although it still isn't stable without screws, all you have to do is support it while you insert the screws. By reducing the difficulty of the SINGLE worst part of office chair assembly, this chair absolutely doesn't deserve any complaints about its assembly. For the comfort and ergonomics, I only have one complaint: the arm rotation is adjustable and I have no use for that feature and only ever activate it unintentionally. This chair has a single control for the gas cylinder where a chair five times its price would have three other controls and position locks. Depending on your body type you might not find the dynamic lumbar support comfortable, but for me it's a very nice chair. ... show more
Reviewed in the United States on February 14, 2024 by Amazon Customer
Unmatched Comfort and Quality - The SIHOO Doro C300 Delivers!
Color: Black Size: Pack of 1
After spending countless hours at my desk, I finally found the perfect companion for my workday - the SIHOO Doro C300 Ergonomic Office Chair. It’s not just a chair; it’s a game-changer. From the moment I sat down, the difference was clear. The ultra-soft 3D armrests cradle my arms like a gentle cloud, reducing fatigue during those long coding sessions. The chair’s design is not only sleek and modern but also intelligently contoured to support the natural curve of my spine. The adjustments are intuitive and plentiful, allowing me to tailor the fit to my body’s needs. Whether I’m leaning back to contemplate a problem or sitting up to focus, the chair moves with me, offering consistent support. The robust construction assures me that it’s a lasting investment. Plus, the easy assembly meant I went from unboxing to relaxing in no time. In my extensive experience with office chairs, the SIHOO Doro C300 stands out for its dedication to comfort, ergonomics, and quality. It’s an absolute must-have for anyone serious about their office setup. Five stars aren’t enough to capture the sheer excellence of this chair! ... show more
Reviewed in the United States on December 27, 2023 by Frankie
Champagne Taste on a Spiked Seltzer Budget? Buy This Office Chair!
Color: Black Size: Pack of 1
This office chair is a great alternative to those that cost hundreds more, even in the pre-owned/secondhand marketplace. The value for the price paid is great because of its build quality, ease of use, good ergonomics, and overall aesthetic. I spent a good amount of time weighing my options of a used Herman Miller or this and I'm so glad I chose the SIHOO. It's nice to have something new of your own and to get a good deal on something. The ability to customize arm height and angle, headrest support, and seat height for a reasonable price were all important factors in the decision. Materials were too, and the webbing on this chair is very durable. The lumbar support is also a huge benefit. The tilt range is also very generous. Assembly took me 40 minutes, but I was half watching a preseason football game at the time. With proper focus, I think 30-35 minutes is reasonable. The chair was very well packed, with strong cardboard inserts, plastic wrapping, and extra hardware just in case. The required tools are provided and the gloves were a nice touch (they can be used for the gas lift; I didn't need them). One recommended upgrade: rollerblade wheels. They make the chair perform at its best, especially on a glass mat. Ultimately, this chair took my work from home setup from a solid B to an A. ... show more
Reviewed in the United States on September 21, 2023 by AMG77
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