T80 Premium Ergonomic Office Chair : Extreme Comfort Home Office Desk Chair, Adjustable Headrest, Lumbar Support, 3D Armrests, Forward Tilt, Seat Depth, Alternative Gaming Chair (Black)

I just received my Dark Gray Sidez Chair with Head Rest a couple of hours ago. I promptly unboxed it and assembled it. I am working from home now and needed a comfortable chair to sit in for hours at a time. I throughly researched ergonomic chairs. I prioritized comfort, durability and style. I read tons of reviews. I compared low, medium and mid-high priced chairs. I decided I did not want to spend the $1,600+ for all the features I wanted on a Herman Miller office chair. But I didn’t want a cheap throwaway chair. I needed a comfortable seat cushion that had an adjustable depth. I am a female senior citizen around 5’ 5” tall. I have an ample rear end. Therefore I needed a chair cushion wide enough and deep enough that would not cut off the blood circulation at my thighs. I needed a chair where I could comfortably sit up at a desk to use my computer for hours at a time, lean back to relax, plus have support for my lower back and behind my head. Additionally I wanted adjustable arm rests so I could set them exactly where I need them. After reading the T80 chair reviews, it was out of stock at the time but I decided to order this chair and wait almost a month to receive it. I have beautiful wood floors that I did not want to damage but I did not want to use ugly floor mats. Again, I did tons of research and decided to order STEALTHO replacement rollerblade style wheels on Amazon. [NOTE: These STEALTHO wheels have a Black “outer shell” so they look Great with a Black chair base (as in the “Dark Gray” chair version). However, I do NOT think this particular STEALTHO replacement rollerblade wheel would look good when the chair base is White (as in the “Light Gray” chair version)] Here is the replacement wheel description on Amazon: ”STEALTO Replacement Office Chair Caster Wheels Set of 5 - Protect Your Floor - Quick & Quiet Rolling Over The Cables - No More Chair Mat Needed - with Brakes - Blue Polyurethane - Standard Stem 7/16.” (FYI: The photos I included with this review show the Dark Gray Sidez T80 Chair with the Stealtho Replacement Wheels w/brakes already installed) I debated about using these wheels with the dark gray T80 chair (as the wheel itself is blue w/black outer frame) and whether it was worth the extra money for the brakes (on two wheels). At $45.99 for a set of 5 I decided to go for it. I liked the idea that the blue wheel won’t turn yellow over time like clear wheels. After installation, the blue wheels look fabulous on the dark gray T80 chair. I’m glad I opted for the ones with brakes because the wheels glide so smoothly, the brakes provide more stability so the chair doesn’t move out from under me when I go to sit down. The instructions for the chair were written in Korean but it was easy to figure out how to assemble the chair without them. However, I am glad another reviewer mentioned the need to remove 2 “installed screws” from the chair 1st before installing the headrest with the new longer screws that are provided in a plastic bag with a Sidiz plate cover. Don’t despair when you 1st sit down, I warn you, it sits straight up without adjustments. Look at the enclosed booklet and adjust the seat height, seat depth, degree of tilt, the tilting tension, the lumbar position, the arm rests and the head rest position. Now it feels heavenly. The seat cushion is very comfortable. It is supportive but not too hard or too soft. Apparently, the fabric cover on the cushion is removable so you can wash it. That is a plus for me. I found the mesh back is very comfortable. The chair has more plastic parts compared to a HM but I knew that before I ordered it. But at $699 it is an affordable alternative to a HM. Actually I was pleasantly surprised when I received the T80 that it seems hefty and very well made. To top it off, it is gorgeous! About me: I purchase A LOT on Amazon. I heavily depend on reading reviews to help me decide on my purchases. I always pay full price and have never been given an item in exchange for a review. So my reviews are honest. This chair was a high dollar item and I am very grateful to all of the people who previously took the time to review this chair. (I try to leave reviews for items I purchase on Amazon but I usually don’t take the time to leave a thorough review). Since this is a more expensive item, I decided to leave an extensive review on this item. I highly recommend this chair. In fact, I decided to take the plunge and I just placed another order for a second T80 in dark gray while it is still in stock for my co-worker. I will try to come back in the future and update my review of this chair after I use it for several months. Update: I also ordered on Amazon: “ErgoFoam Adjustable Foot Rest Under Desk for Added Height | Large Premium Velvet Soft Foam Footrest for Desk | Most Comfortable Desk Foot Rest in The World for Back, Lumbar, Knee Pain (Black)” to use with my T80 chair. (There are a variety of under desk foot rests available on Amazon and office supply stores so look around if you are interested). I just wanted to say this foot rest delivered today. The addition of the use of a foot rest, (with this already awesome T80 chair), makes my feet, legs and lower back say “Ahhhhhhh”.

I've been using Sidiz T80 for two months, and now I can share some of pros and cons I found. First when I got the chair, it felt really uncomfortable for a week. Then, I realized that it's because I wasn't seating correctly. I was seating more like "C" shape when it supposed to be like "S" shape. Then, I felt significantly less back pain after I correct my posture. I felt like T80 designed to be support your back really well seating with right posture. Second, it's very easy to assemble. It took me less than 5 minutes to unbox, and assemble the chair. Also, I really liked its ease of use. Adjusting tilt angles, firmness of the back support and height are very easy to adjust and it's intuitive. It also comes with better materials overall than T50. T80 is significantly heavier then T50. T50 had more plastic parts and flimsy parts. T80 has better mesh back, cushion fabric and other parts than T50. On the other hand, there are a few things that I wish T80 could do better. I wish T80 offered a free tilt adjustment, instead of only four tilt pre-adjusted angles. I wish I could lock at any tilt angle I want. Also, I wish the T80's lumbar support can adjust the depth, like T50. It could've made T80 a perfect chair for me if I could adjust the lumbar support a bit forward (T50 offers it, but poorly). Also, I liked T50's seat cushion over T80. I'm not sure if it's just my T80, but the cushion is too thin and too firm. So I feel uncomfortable when seating over a longer period of time, which I didn't experience with T50. Overall, I would recommend T80 for home/office environment. ("maybe" for gaming) Pros - Well made, premium feel like office chair. - back and lumbar support is firm and it supports your back really well. - Easy to assemble - Ease of use. Cons - Price. Although this chair feels like premium, it's questionable when T50 is only half of its price. - Offers tilt adjustment, but only four pre-adjusted tilt angles. - Cushion is too firm and flat.

This chair came with a broken arm rest, it wasn't able to unlock and move up/down. I was able to pop one of the arm covers off and saw the locking mechanism was broken, so it was sort of lodged in there and unable to move up or down. There is no number I found to call customer support so it was all done over email, and it's been about a week of back and forth - sending photos and video to confirm my arm rest was broken. I still haven't even gotten an email from them saying they'd reimburse me or send me a part to fix it and it's been about 4 days since they've responded back to me after I sent them 2 emails. I've just decided to return the chair and look for something else. Despite the broken arm rest I tried it out for about a week. The seat itself wasn't as comfortable as I'd expect with this price. And after a few hours of use it felt flat and uncomfortable. Overall it's a decent chair, but for the price I was expecting a little bit more. I think many of the $200-$300 options accomplish what this chair does. I'd recommend either saving the money and getting one of the less expensive chairs or possibly go all in for a $1,000-$1,500 option. I'm going to go for the Steelcase Gesture and hope that I don't run into the same issues...

No instructions included. But simple still to figure out assembly. Chair offers great settings. Only complaint is the rather hard seat cushion and arm rests. Had to use an old seat cushion which helps. Love the reclining seat back. Works very well. No height adjustment on the head rear, but it tilts and it works for me.

I have been searching for a good chair that has good lower back support. I found this chair and boy does it look great on the advertisement. The chair is easy to assemble, I will give them that. The seat does not tilt far enough back which adds stress on the back. I cannot even get comfortable with a pillow under my knees or behind my back. The headrest does not lock in place, so if you push your head back or down on the headrest it resets. Unfortunate experience for such an expensive chair.

First things first, I did not keep this chair for reasons I will detail below. That being said, I can easily recommend this chair for most people who are looking for a robust, well made ergonomic chair that's under $1,000. When I received the chair, it arrived in pristine condition. It had custom cut foam to fit around parts of the chair and ample padding throughout. It wasn't quite the unboxing experience the SecretLab Omega D.va Edition (surprisingly well packaged) was but far better than the shockingly poor Vertagear SL4000. Assembly was by far the easiest of any chair I've purchased. Since the arms come attached to the frame of the chair, the only real assembly is if you opt to install the headrest. Otherwise, the gas lift simply sits inside the 5 star base and the chair lowered onto the gas lift piston. Insert casters. Done in minutes. The build quality of the chair, despite being mostly plastic, is very high. There is heft to the chair and it feels rigid, with no weird flex or give in random spots. The finish and feel very similar to higher end chairs like the Steelcase Gesture. The plastics, anyway. The fabric isn't quite up there. The mesh back is thick and the seat fabric felt like a mid-rub blend of poly. The five star base felt very durable despite being plastic. The casters were also plastic but they were the smoothest ones I've felt yet. They also performed fairly well on high pile carpet. In terms of ergonomics, there are a ton of adjustments that can be made to tailor to your preferences. Without going in depth, I've found that it hit basically everything I looked for with the exception of being able to lock a seat/back tilt angle. This is something that's usually reserved to only the most adjustable ergonomic chairs out there so it didn't come as a surprise. Comfort wise, it was mixed. The chair was supportive and comfortable for short stays but the seat didn't agree with my flat butt over extended sessions. On the flip side, my girlfriend found it comfortable and had she not wanted a pink gamer chair (the SecretLab I mentioned), I would have kept the T80 and have her use it instead. Oh well. Ultimately, the reason why I ended up returning the chair was because there were a few small issues that I could not resolve. The biggest issue was the size. While it is a larger chair than most, the headrest was too short and only supported my neck and lower head. Being just shy of 6'1", I suspected that I might run into this issue but hoped the headrest would adjust high enough. The lumbar support also did not adjust high enough and only managed to reach my upper hip. Lastly, there was a very small amount of a play in the seat that bothered me. A crazy nitpick for many I'm sure, but I shift in my seat from time to time and every once in a while, I would feel a click or a slight wobble. If the headrest and lumbar were better positioned for a taller person, I would have gotten over the seat but it was not meant to be. At the end of the day, I think the majority of buyers would be thrilled to own it. The T80 is stylish and holds its own against the likes of the Aeron (supportive, but not as comfortable) and Gesture (not as supportive but comfy) at a lower price. The customer support was also fantastic. I just wish it were taller, since I can't do anything about my height. :P

Box had a bit of wear but it came cross country via UPS. No damage, plenty of packing. Correct color. It took 10 minutes to assemble and I had watched a short video prior to receiving it. So very different than my $79 previous chair that was probably 4 years old or more. I'm starting on 4 for comfort - I have not spent a lot of time configuring. The back support out of the box was a bit much and it needed to be set to my height - I am 5'7". Once at the right height, very comfortable. Seat cushion slides back and forth, needed to be out further, which also decreases the back support pressure. Ergo adjustments are easy to use. The two knobs - one sets how far seat goes back - very nice. The other determines the resistance of the spring, so tighter and the seat does not lean back as easily. Overall, the chair is expensive and extensively plastic, but for now - I will start at 5 and report back after I spent a little bit of time with the chair, especially after a full week of 10 hour per day use.

Assembly was easy, I watched the YouTube video and put it together in less than five minutes. My initial impression of the chair was good. While there is a lot of plastic, the chair feels solid and looks pretty good. The mechanism that tilts the base when you lean back in the chair feels smooth and sturdy, and I was able to make adjustments easily, with the exception of the armrests which are difficult to move. It wasn't until I had sat in the chair a little while that I felt the hard plastic lumbar support. I tried moving it down and away from my back, but it doesn't move far enough. The problem isn't just the fact that the lumbar is rock hard, there is a design flaw that causes two plastic pieces to stick out into your back. (picture attached) At this point, I would have returned the item, but unfortunately I had tossed the packing (because my apartment is small, and the box was extremely large. Also I'm an idiot.) With some effort I was able to jam a towel between the lumbar and the mesh, that helped enough as a temporary fix. I inspected the lumbar and determined that I had a chance of being able to remove the metal bar/spring and plastic piece and replace it with a cushion, so I bought a lumbar support pillow and after about an hour of work I finished. (pictures attached) The chair is supportive, but not super comfortable. I am mostly fine with that, I just need something I can sit in 50 hours a week and maintain decent posture. Complaints I have in order of importance are: - The lumbar is a total dealbreaker - The headrest is too short, even though I am 5' 8" - The seat cushion is just a tad too firm to be comfortable, and slides slightly sometimes. In summary, unless this is on sale for $250, don't buy it. I wish I had sprung for a Herman Miller Embody. Sure it would have cost twice as much, but I would be comfortable.