SIHOO Doro C300 Ergonomic Office Chair with Ultra Soft 3D Armrests, Dynamic Lumbar Support for Home Office Chair, Adjustable Backrest Desk Chair, Swivel Big and Tall Computer Chair Black

I have a NOUHAUS Ergo3D Ergonomic Office Chair that purchased on Amazon 5 years ago that is good but wanted to step up and this chair is terrific as far as adjustments and lumbar support, neck wrest. Found the chair very comfortable. I was surprised how easy to put together. About an hour and cup of coffee. Saw reviews on difficult to assemble, those people must be challenged on anything past changing a light bulb. Only this I don't like is arm wrests move much more freely then I would like

Upon arrival I had an issue with the wheels sticking a bit. I reached out to Sihoo support and they quickly sent me replacement parts for the affected areas. Since then I have had a great experience with this chair. It’s very comfortable, sleek looking, easy to adjust, and is great build quality. It’s easy to adjust it to fit your comfort needs. The reclining lock and headrest adjustment are awesome. After having used it for about 5 months, I’m super happy with it. It’s an incredible chair for the price.

I've used this chair for 3 months now, and I have zero regrets! I purchased this chair on sale, but the chair feels worth their original listed price. The mesh material has a nice, bouncy give to it that feels very comfortable when sitting. The mesh has a strategically used rubber texture that gives it some grab and prevents a sliding feeling when leaning. The plastic skelatal structure feels high-quality, and the base of the chair feels weighty and well built. The lean-back position on the chair feels great too. I haven't found a way to tilt the chair, but the lean-back feature and the shape of the base has made that a non-issue. I also haven't figured out if there is a way to further customize the lumbar support, but it feels adequitly placed and pronounced by default. A great feature of it is that it slides and automatically readjusts to your back when leaning. The entire backing of the chair can be raised or lowered as one piece. The highly customizable headrest was a selling point for me and I am VERY pleased with it. It can ARCH forward or back at multiple positions, TILT foward or back and pultiple positions, and SLIDE up or down in multiple positions. I can get it to the perfect position on my neck and get perfect head-support! The 5 metal legs and plasic rollers feel heavy and strong. The arms are adequit. They can't hug closer to your body, and the material on the armrests feel a little more stiff and frictiony than I might have originally perfered, but they feel like they will last. They may not have the pitch and extra customizability of a more expensive chairs' armrests, but they can slide forward and back and they have a large degree of rotation. I have been able to leavearge the rotation abilities offered, piared with the shape of the armrest, to find a comfortable position regardless of my various uses/needs. All-in-all, I feel it is a fantastic chair for the price and I highly reccomend it! (If Sihoo is reading this, I wish I could add-on a moderately priced, attachable footrest to this chair. 😉) End of novel.

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.

I like this chair, but I’m disappointed by SIHOO’s misleading marketing approach. My friends and I have used SIHOO chairs in China for years, trusting them for cost-effectiveness and quality. When we come to US, we naturally choose SIHOO again. To my surprise, the overseas C300 model severely compromises the brand’s value. Before buying, we noticed that overseas versions (like the S100 and C300) lack a footrest found in the Chinese versions, but we didn’t know why. Once I received the C300, I still found it comfortable and well-built. However, after reading more on Chinese review videos, I realized the overseas C300 is essentially a downgraded product that conflicts with the SIHOO Doro series’ original concept. Key differences: 1. The original version uses a gravity-sensitive tilt mechanism with wire controls, while the overseas version uses simpler pole controls. 2. The original has a seat-depth adjustment feature, but the overseas version does not. 3. The tilt angle advertised in Chinese official website is 95°–145°, while the English site states 92°–112°, and 110°–130° on Amazon. This discrepancy suggests an inferior tilt mechanism. 4. The base is downgraded from a single integrated unit to five separate pieces. In China, the original costs about $220–$250 with free on-site installation — a product more comparable to the $400 overseas C300 Pro (2024.12.8), which offers flip-up armrests and adjustable seat depth, though it remains inferior to the original C300 in terms of tilt mechanism and base. Why did I keep digging reviews after receiving a decent chair? Because the manual doesn't include Chinese, even though it provides English, German, French, Italian, Spanish, Japanese and Arabic! I feel misled by the identical product name. Although regional differences are understandable, the abundance of information on Chinese Internet set my expectations too high. If I had known the overseas C300 was so different, I would have chosen the C300 Pro instead. When considering only the overseas versions, I can hardly recommend SIHOO chairs to my friends because, despite also being made in China, I have no idea where the overseas versions' factory is, what the cost and workmanship are like, so I can't judge the cost-effectiveness. In terms of C300 quality alone, I am 5'6" tall and weigh 155 pounds, and the size of this chair suits me well, with good attention to detail in workmanship. Update on 2024 Dec 28: According to information from the Sihoo customer service team, the C300 model in the US is actually the C100 in China (and it seems to be the C100 Gen 1 instead of Gen 2). And they said they will make certain improvements to some issues mentioned above. In view of the long long email conversations, I believe Sihoo's customer service department treated with their products with care, so I changed the rating.

It’s honestly made such a difference during my long work sessions. First off, it arrived safely packed. It looks modern and minimalistic. Getting it set up was smoother than I expected. The instructions were clear, and I had it ready to go in under an hour without needing help. Once I sat down, the breathable mesh stood out right away—it keeps airflow going, so I stay cool even after hours at the desk. The dynamic lumbar support is also a game-changer: it naturally shifts with my posture, giving me steady back support whether I lean forward to work or recline to relax. The armrests are flexible—they move up, down, forward, and even rotate whenever I recline, so I can always find a comfy position for typing or leaning back. Though they might feel a bit flimsy at times. Oh, and speaking of reclining—it tilts easily up to around 130 degrees, which is perfect for when I need a quick break. The chair adjusts to my weight too, so reclining never feels stiff or awkward. Despite all these features, it feels really sturdy—solid build, high-quality materials, and smooth, quiet wheels. Minor note: It’s a bit heavy to move once assembled, so plan your layout ahead of time. For great value and solid comfort, this chair gets you a similar mesh aesthetic and adaptive support at a fraction of $1000 Herman Miller price. It supports good posture naturally, and just feels really comfortable—like it’s moving with me instead of resisting. If you're spending lots of time seated, especially working from home, this one’s worth trying out. I had it for 2 years and still going strong.

Wow! Excellent quality and built like a tank. Looks great and at 200lbs I’m not worried about it at all. Fairly easy to assemble but there are a couple of places an extra set of hands would be nice.

I got it today and took me about one hour to put it together. If you don't like IKEA you might not enjoy all the screws and pieces. But if you can endure that - the result is worth it! The chair itself is solid, supportive and comfortable. My back muscles will be a little sore for a few days, but simply cause I have a crappy posture and I’m not used to sit this well. But I did a lot of research and this has the same economics of way more expensive premium chairs at half the price. To me was a back health investment considering I have to sit on it for 8 hours a day minimum.