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

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”.

Originally Purchased: 2022/03/17 Update: 2025/08/01 --- Still holding strong after 3 years. I've added a supplementary cushion to help with my back pain, but that's no fault of the chair itself. --- Update: 2023/07/27: Lasting Quality --- More than a year on and this is just as comfortable as it was when I received it. I decided to add a memory foam seat pad which I think has helped to improve my posture. For others unsure of what all of the knobs do, the LH side knob adjusts the reclining lock and the RH side knob adjusts the reclining resistance. My only gripe after spending some time in this chair is the hard plastic lumbar support. I will add a lumbar pillow instead. --- Original review below --- I have not had a very nice chair since I worked in an office, but because I now work from home and spend ~60% of my day in my office chair, I decided to upgrade from my cheap and very worn chair that had no adjustments besides height. I find it very difficult to justify the cost of some things like mattresses and chairs, but since I spend so much time in them anyways and I'm approaching 30, I knew I needed to start taking better care of my back and joints. As much as I would love to splurge on a $1500+ chair, this Sidiz T80 came in at half the cost of competing chairs, and I think this is easily as comfortable as any one of those competing brand's chairs I have had the pleasure of sitting in. It took me maybe 10 minutes to assemble including removing the wrapping from the box. The thing I struggled the most with was inserting the casters into the base, but once that was done, the rest was a breeze. There are a ton of adjustments, though I am not sure what the little knob stems on the side do yet. I know one controls whether and how far you can lean the chair back, but I'm not sure of the other. Only time will tell if this chair holds up, but first impressions tell me that this thing is solidly built. Side note: The casters are extremely quiet. So quiet that I can't tell if they're making any noise unless I'm really speeding across the office. Awesome!

I've used their T50 chair in my office so I bought the T80 for home office. Here is my comparison of the 2. The good stuff. -Design. Chair looks great and was easy to assemble. -Armrest are better then the T50. More stable and adjustable. -You can lock the recline even though I don't use this. T50 doesn't has the lock feature. The not so good stuff. -I'm not as comfortable on the T80 for long hours on it. -The cushion is not as sturdy as the T50. When you recline the cushion can move forward making it thinner or compressed more and after hours on it your rear end will let you know. I didn't get this from the T50. -Speaking of the recline, the T80 doesn't recline as much as the T50. This is also a setback. That extra tilt makes a big difference. -The lumber is also not as adjustable as the T50. It even shows this in the pictures but the T80 lumber is so low I don't know how a tall person will get comfort from this. It's barely tall even for me. I love the look of the T80 but the comfort of the T50. The cushion is my biggest disappointment. I thought the T80 almost twice the cost of the T50 would be better but not so. I'm not sure if I will keep this or but something else. My rear end doesn't like the cushion. Maybe I need to find an extra cushion or modify this one. I'll reach out the SIDIZ and see what they say. I'll update my review if anything happens. 8/19/2021