SIHOOM57 Ergonomic Office Chair with 3 Way Armrests Lumbar Support and Adjustable Headrest High Back with Tilt Function (Black)

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.

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.

The assembly for this chair was very straight forward and not difficult. As soon as I sat in this chair I noticed the lumbar support provide a welcoming back support feeling of relief. I feel really good at my desk with this chair.The only reason I did not give it 5 starts is because of wheels are not rolling smoothly. I'm used to chairs allowing me to glide from one area of my room to the next. I cannot glide across the flow with this chair because one or more of the wheels feel like they are getting jammed. In a worse case I can replace the wheels just to stay with the conform the chair provides because I've not found one this comfortable for many years.Update on July 22, 2025I have another issue in addition to the problem I have with the wheels. When I first received the chair, it allowed me to lean back. I later tightened the bottom of the chair so it would be more firm so I could work without leaning back. Later, I tried to loosen the dial at the bottom so I could lean back again but now it won't let me. I have loosened the knob under the chair as far as it will allow me to but still the chair will not let me lean back like it did at first. I hope there is a solution to this.

I have no hesitation giving five stars for this high quality chair. Assembling it is where the chair shine. The parts fit together well and even the nuts and bolts are nicely finished. It looks amazing, much better than I expected. The height adjustability and other customizations are easy to use and work perfectly. It's replaced my Herman-Miller Aeron as my favorite chair.