M57 Ergonomic Office Chair, Mesh Back Desk Chair with 3D Armrests

Just got this chair today, assembly is very easy and the parts are very robust, most of this chair feels high quality except the plastic paddle on the lever that adjusts the height and locks & unlocks the reclining function and the headrest attaches to the back of the chair. That part is a bit cheap feeling but as long as you don't have someone jokingly pull the chair back by the headrest it shouldn't be a problem, but if some joker wants to pull on it to scare you, it could break eventually. As to the long term comfort, right now I can not attest to that yet. But what I can tell you is that this chair is not meant for very wide people with a very large rear-ends. The chair is narrow, I am a small guy 5'5" 150lbs and this chair is just the right size for me. THE HEADREST at its lowest setting and tilted all the way back is just the right place for it to rest just under the back of my skull and just above me shoulders just they way those U shaped travel neck pillows rest around you neck to give the back of your neck support when you are traveling. So if you are shorter, it wont rest there most likely. That's where I like it to be but you may differ, but what I can tell you is that if you don't rest it there it will force your head forward because it doesn't move back any farther, which I don't like. THE LUMBAR SUPPORT is okay, this chair allows you the screw it in as far as you like and for me its in the right place, but as far as it goes I've never had a chair with this so it takes some getting used to, but you an just unscrew it so you cant feel it, but I want to be in a proper ergo so I will just get used to it. THE ADJUSTABLE HEIGHT is good for me as a short guy many office chairs don't adjust low enough, and even though I can put my feet flat on the ground for most of them, the weight of the backs of my legs are entirely being held by the chairs seat instead of letting me reduce pressure on the back of my legs with my feet allowing my knees to be at an 80 degree angle instead of a hard 90 degree angle putting unneeded pressure on my hamstrings. I am using it while writing this review and it is currently at the lowest setting and it is perfect for me, so if you are shorter then me take that into account. As well be careful with the lever that adjusts the height because it is one of the only things that I can see breaking if you are not mindful. THE BACK REST is very comfortable because for me at least it has a high back and is just broad enough in the shoulders and for a small guy I have broad shoulders. I have a different mesh chair with a short back and the metal frame that holds the mesh on that chair constantly digs into my back and I cant bare sitting in it for very long but it was free so beggars cant be choosers. There is nothing able to do that on this chair for my body size and I appreciate that very much. THE SEAT is fully mesh with a cushion under the knees and seems to be comfortable as of right now, as I said long term comfort is still to be decided. But at first feel, I can say as long as you keep your legs facing forward I don't foresee a problem. But when I decided to buy a fully mesh chair I realized one of my favorite ways to sit will no longer be possible. I like to Spread my legs and have my right leg off the side of the chair instead of the front. With mesh chairs, because of their nature, they are elevated on the sides similar to a bucket seat chair, but there are no cushions so it will surely cut off circulation so this is a no go. This is something I knew going into this purchase and decided it was worth a try and I can just get used to it. Another position I like is to sit in my chair cross legged. This is still possible but not the most comfortable because the bucket shape isn't as comfortable for my feet. The comfort of the seat is probably the most important part of this chair for me. I will be sitting in it every day for very long periods of time and I need something that wont fatigue my butt, tailbone and the back of my legs, if this mesh seat creates pressure points and I begin to get sore, I will try and update this review, and I will probably return the chair and look for a regular cushion chair or buy the regular cushion style of this chair because they make one with a plush cushion as well. Hope this cleared something up for some of you.

Great Quality and Very Comfortable I’m very happy with this chair. It feels sturdy, comfortable, and well made. The materials are good quality, and it was easy to assemble. I liked it so much that when I saw it on sale, I bought another one as a gift for my friend. Definitely a great chair for the price. Highly recommended!

I did my time looking through stats and reviews and settled on the Sihoo M57, and so far, it has been really good. With some caveats. Take this all with a grain of salt, your mileage may vary. It was easy to put together, even without a helper. I like the lumbar support and the headrest, it does help me sit properly, which I did not feel that I had in the Steelcase Amia. The seat is skinnier than the Amia. So, if you like a wider seat, keep that in mind. I am 5'6" and I do notice that my feet can float even at the low setting, so I have a footrest if I am not using the caster legs to rest on. It is documented that we should be getting out of our chairs and moving around every hour or so. If I were to follow that guideline better, I would be better off, but since I do not, I have noticed that I can last a few hours on this seat without discomfort, but if I get up fairly regularly, I can avoid any posterior pain. Note well, the arms are for resting, not for lifting or pushing yourself up. They will go down with sufficient pressure. The manual headrest is ... challenging to maneuver into place up and down. It rolls forward and back just fine. The lumbar elevation is similar, up and down is difficult but the twist knob in and out is just fine. The recline is great, though I am mainly sitting up straight most of the day. Locking it in place is good. Elevating the chair also works as expected. All in all, about a month in, I am happy with my purchase. I feel the price was right and the number of features and comfort fit this level. I hope this helps if you are looking for your next office chair.

I’ve owned the SIHOO M57 ergonomic chair for over four years, and it remains one of the most affordable and comfortable chairs I’ve used. It has held up well under daily use, which speaks to the overall quality of the design. Over time, however, I began experiencing issues with the armrests. One failed first, then the other, eventually leaving the chair without both arms. Despite this, the chair itself was still so comfortable that I didn’t want to replace it entirely. Instead, I contacted SIHOO to ask if I could purchase replacement armrests. I made it clear that I was not seeking a warranty claim, as the chair was beyond the three-year warranty period. Although SIHOO informed me that they do not typically sell individual replacement parts, they still took the time to request photos and review my situation. After I provided the images and original purchase invoice, they went above and beyond by offering to send replacement arms at no cost. This was an unexpected and highly appreciated gesture. Customer service like this deserves recognition. While many companies meet expectations, SIHOO exceeded them. Their willingness to support a long-time customer, even outside the warranty period, reflects a strong commitment to customer satisfaction. That said, there is one area where SIHOO could further improve the customer experience: • Offering individual replacement parts for purchase would be a valuable option for customers who want to extend the life of their chairs. Overall, I have no hesitation recommending SIHOO chairs. Not only do they produce comfortable and well-built products, but they also stand behind them with exceptional customer service.

I've had this chair for a couple weeks now and am pretty happy with it. I was using a hand-me-down gaming chair that was super cheap, falling apart and starting to hurt my back. Instead of getting another gaming chair, which I feel like are mostly for looks and don't really provide any support, I wanted an ergonomic one, but didn't have several hundred dollars to a grand to throw at a really nice brand name chair. This is the only chair I found that fit both my budget and my criteria: all mesh, adjustable lumbar, included adjustable headrest, tilt tension control, and adjustable armrests. For reference, I'm 5'4, 120 lbs, and this chair fits me really comfortably. I like the lumbar on the most shallow setting--it's just enough support without being obtrusive, and I'm really glad you can adjust the height. I love being able to adjust the seat tilt and tension as well, since I'm super active in my chair and like to rock back and forth at my desk and lean back for breaks. I sit at my desk all day for work, and after work I stay there and game, so I needed a chair that would recline and be good for lounging too (also why the headrest was so important). There is hard plastic on the edges of the seat and backrest, but it doesn't really bother me. I like to be an "ergonomic rebel" and sit cross-legged a lot, and I don't find that the edges of the seat hurt my legs. Although I'm on the shorter side, so your mileage may vary if you're taller and like to sit with your legs curled up. The mesh feels firm and has enough give to be comfortable while providing support and breathing. Again, I'm on the smaller side so I don't think the mesh sagging will be too much of an issue for me personally. I actually really like the headrest--it fits in the curve of my neck comfortably, and even though you can't move it forward or back, I feel like being able to tilt up and down and change the height makes up for it. You'll definitely want to take time to play around with the adjustability and find the right fit for you. The only other thing I would have liked is the ability to move the arms in and out horizontally (I like to have the arm rests really close to me, but if you need them to be wider it looks like you can move them farther apart when assembling), but I wasn't expecting to find that in a $200 chair, and I'm just glad I can adjust the arm rests forwards backwards, up, down, and rotate them. I use that functionality a lot, so it works great for my needs. The arm rests themselves are made of a pretty hard rubber but have some slight give, so not just rock-hard plastic. If you need the arm rests to be cushy you can probably get covers for them. Assembly was pretty straightforward, but I followed their video as well just to make sure I did it right. Some of the castors required extra force to attach, but felt solid once they were in. Haven't had any issues with squeaking or creaking yet--still feels pretty sturdy (and I sit in it for 10+ hours a day). I did check all the pieces for scuffs, dents, or tears before assembling, but everything was in good condition. I'd read great reviews about SIHOO's customer support beforehand though so I wasn't worried in the case I did need to replace anything. Overall, if you want a chair that has ergonomic features and adjustability, and doesn't break the bank, I'd recommend this one. I did weeks of research before deciding on it and I'm pretty happy with my decision, especially for the price! In the future when I have a thousand dollars to invest in a Herman Miller or Haworth I'll probably upgrade, but I'm more than happy with this chair in the meantime.

I heard about these types of chairs from a friend but was sceptical about them given the design looks cheap on most of these chairs. You would think the fabric wouldn't hold much weight, the lumbar support might be useless, and with all this plastic theres no way this chair is sturdy. If you thought any of that yourself take a moment to read all of this review. (Before I begin I chose this brand because it had some of the best reviews, build quality and price I could find online, and I research all my options for weeks, this was the best deal I could find.) I will just start my review with the day I recieved this chair because there was no issues with shipping and all went well there. So I received the chair in a box that looked like it was attacked by an angry rhino, it was beat up and had small holes to even giant holes, my first thought was well the chair is ruined. Luckly this company thought ahead and prepared this chair to be shipped from even the worst of lazy shippers because the chair was spotless and in perfect condition. They had this chair wrapped up in some of the nicest bubble wrap, plastic, and foam you can find, so this chair was completely protected. I slowly removed all the chair parts, tools, and to my surprise a nice pair of gloves to use if I wanted to. I followed the instructions and with little effort was able to build the chair in 15 minutes, very good instructions. I inspected the chair while putting it together and found that everything was well made and polished properly, no tiny dents, scratches or other imperfections. To say the least I was very satisfied with the effort they put to protect the chair during shipment. After all was together I tried it out and was almost immediately in love. This chair despite being made of mostly thin mesh and plastic was very sturdy and comfortable, and I weigh almost 300 pounds. I have been using this chair mainly while gaming for hours and love it. I never get hot or sore from this chair and the lumbar support and headrest keep my back completely straight removing the worry of hurting my back anymore. The lumbar support is adjustable up and down and back and foward but you have to to pull it hard up and push it hard back down but this is just to keeps it sturdy. I have had this chair for almost 2 months now and have no complaints. There is no creeking or strange noises at all and I never feel like the chair going to give way and fall apart. I highly recommend this chair to anyone who spends a lot of time in chair for work, gaming or any other activity that are better done sitting in a comfortable chair. As of right now I have zero complaints and if any come up I will update this review. If you read this review and are still worried, take your time and think of your unique situation and do what is best for you, but my recommendation is go ahead and pick this chair up if your looking for a chair like this and experience the comfort of this chair and the piece of mind that you know this chair will help prevent or, in my case, help improve back problems. I can honestly say this chair helped me keep my back from getting worse and I have less back pains now that I use this chair, it's no cure but it helps.

Here are outlines of SIHOO M57 Chair: 1. Out of package: excellent quality, great craftsmanship. Each part is perfectly manufactured, no defects. 2. Assembly: self-explanatory and easy, feels strong and durable, no failing points, good structural integrity, steel, hard plastic composite. 3. Comfort: five stars plus, nothing else needed. All possible adjustments are available: height, tilt (from soft to hard), arm rests (height, angle, wide). I easy took out the head rest, I do not need it when working. I tested many chairs that are available locally, this one is above all of them. Eliminates back discomfort, could not find similarly good chair in the past. 4. Look and Feel: modern, meets today’s standards of computer/work chair. It advertises as Big and Tall, for 5”11 feels perfect. 5. Overall value to price ratio: much higher that chairs I try locally, and higher than I expected.

UPDATE (9/22/2023, tried it for 5 days): this chair is really uncomfortable and it's because there isn't full back support - the recline on the chair is all the way forward & there is no support on my upper back when I sit straight up. therefore, all the compression goes into your lower back which is why the lumbar support feels so bad (see photo). I suspect it's due to poor design. Thankfully, it is possible to disassemble and get back in the shipping box (your Tetris skills will come in handy esp if you can't get the gas piston out of the chair metal base like us). I had high hopes for this chair from what looks like a reputable Chinese company - you get what you pay for and now going to find a used office chair under $300 that normally retails at $1k - just like your bed, it will be worth paying an extra 50%! This review is totally based on first impressions immediately after putting it together. I’m likely to come back and update my medium and long-term experience I shopped around quite a bit and what distinguished this chair (and a few others) is the 4-way lumbar pillow adjustment. I previously sat in the $100 chair they have at Costco and was pretty turned off by the fact that (1) it was plastic and (2) I wasn’t able to adjust the lumbar in/out (aka depth) - the depth adjustment is key - this was really obvious in the first 10 minutes sitting in the chair (and I previously had a Haworth X99 with a similar adjustment). Time will tell if the lumbar is “pokey” like other reviews share but I need the lumbar support and definitely used to some degree of pokiness from other chairs (and even my car’s driver seat) I considered SIHOO’s M18 chair and decided to pay extra for the mesh seat, fully adjustable armrests (the M18 only move up and down which is the bare minimum), and what sounds like better construction from reviews. It took about an hour to put the chair together (I took my time, if I had to do it again, it probably would only take 30-45 minutes) A nifty hex tool was included as well as some cloth gloves (which impressed me) - helps protect your hands not only from getting dirty but also from random metal edges while putting the base together. I’d have a rubber mallet handy, while putting the 5 spokes into the hub of the base of the chair, 2 of them needed an extra nudge. you could probably force the screw in but I didn’t want to do that. It takes a bit of a push to put the wheels in. the instructions aren’t clear how far they are supposed to go in but they eventually go all the way in with some wiggling. So now that the chair is put together, I’m writing this review sitting in the chair. you definitely get what you pay for. it’s not a bad chair and I think my immediate gripe is I wish the back would sit straight up just a tad bit more to encourage good posture (I would like the upper part of the chair to press on my upper back while the lumbar support presses on my lower spine). and if the back were to sit up straight a bit more, the headrest would also support my head while sitting straight up (which admittedly would be nice). so the headrest doesn’t really function unless you are reclining in the chair. I’m happy I’m able to lower the seat at a level where my feet are flat on the floor and my legs are at 90 degrees while at the same time, raise the armrests so they are level with my desktop. being able to swivel both armrests inward is useful as I’m often typing. the armrests can also move towards my desk which again helps with ergonomics. I have a Haworth X99 executive task chair overseas I got for a grand (back in 2004) to nurse my bad back so I know exactly what a quality chair should feel like. I went in buying this chair knowing not to expect the same experience for a fifth the price. Some reviews claim this chair has comparable comfort to an Aeron (which is also another $1k chair) - and while I have every reason to be skeptical, if the M57 was anywhere in between my expectations of a $200 and a $1k chair, I figured we’re doing ok. This is my thought process and just a reminder not to expect to easily put this chair back in the box - unless you have a friend who has this exact chair, you’re pretty much buying it on blind faith and not going to be able to easily return it. So go to an office furniture store that sells the $2k Aeron chair and everything in between (also go to Staples or Costco to sit in $50-100 chairs if you need to) and sort out what features you really want. It will really help you narrow down your choices here on Amazon to 2 or 3 chairs you would seriously consider and just pick one (probably based on budget). Good luck!

Hasta ahorita excelente calidad, fácil armado y cómoda.

I thought I should give an update, to my original review. After dismantling the chair, I thought I'd give tracking down a replacement part a try, after a bit of browsing I decided to contact SIHOO's customer services. The chair is well out of warranty but thought I might be able to buy a replacement. The reason I've bumped this back to a 5 star review is they sent out the part for free. My favourite price. The parts not an exact replacement but it turns it back into a functioning and comfortable chair. One issue to watch out for, the cylinder piston will be very well attached, I needed to buy one of these to get it to extract: https://www.amazon.co.uk/dp/B0C7VY2MX1?ref=ppx_yo2ov_dt_b_product_details&th=1 (Previously) I've been using this as an in-home office and gaming chair for the last 4 years. Up to the last few weeks, it served my average size (6' tall, 14 stone) self well. It has seen some serious posterior hours in that time as like many I've been working from home and continue to do so. (8 hour working day and an evening of gaming most nights). When it arrived it was easy to assemble, a bit of hex key / spanner work during assembly but nothing tricky. The chair is comfortable, I have pulled 16 hour days in the thing with no issue (of course moving around occasionally, coffee doesn't make itself). Support wise it's adjustability is fine, good back and neck support. The neck could be a little stiffer maybe but not a huge deal. So, why the average review. The picture is the clue here. After 4 years of service the metal connecting plate of the backrest has started to bend and sheer. The washer's have squashed out of existence as well, maybe I could have caught the pending break if I'd spotted this earlier. If you're not going to sit in this chair night and day I think it's still a good chair. And if they were to extend the connecting portion of the frame it would probably prevent this from happening. It just has too much pivoting potential over those 3 screws.

Aucun regret la chaise et facile à monter, solide, elle soutient bien les lombaires et la nuque, je peux écrire au roman pendant plusieurs heures sans avoir mal au cou, aux épaules, ou au dos contrairement à ma chaise précédente. J'ai fait tomber du chocolat qui a fondu sur le siège et avec une éponge et un peu d'eau c'est parti. À peu près tout est réglable que ça soit l'inclinaison pour la nuque, la hauteur, les accoudoirs sont réglables en hauteur aussi il pivote également selon l'orientation des bras.

Easy to adjust, supportive, well built. No complaints after (X weeks) of daily use. Good for the price.

It took 3 weeks to reach me (it was informed upon placing order), even though there is no tracking available, seller is quite responsive. I would give 5 stars if they provide installation service too (at least an payable option). It took me appx 40mins to get it all fixed, as it quite heavy when fixing the bottom. Not much complain in terms of the quality, but the mesh fiction will probably rub against your skin if you are wearing shorts (working from home).