





🪑 Elevate your workday with the chair that’s got 2 million reasons to impress!
The SIDIZ T50 Ergonomic Office Chair is a globally acclaimed, award-winning seating solution designed for professionals who demand personalized comfort. Featuring over 10 adjustable ergonomic functions including headrest, lumbar support, and armrests, it supports users from 5'1" to 6'2" with a durable frame certified for safety and stability up to 275 lbs. With 2 million units sold across 62 countries and a sleek mesh design, it’s the ultimate blend of style, function, and reliability for home office and gaming setups alike.











| ASIN | B083FBNWCD |
| Additional Features | Adjustable Headrest, Adjustable Height, Adjustable Lumbar, Ergonomic, Reclining |
| Age Range Description | Adult |
| Arm Style | with-arms |
| Assembly Instructions Description | DIY partly assembled |
| Back Style | Mesh |
| Best Sellers Rank | #1,616,619 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #3,028 in Home Office Desk Chairs |
| Brand | SIDIZ |
| Brand Name | SIDIZ |
| Chair Backrest Width | 20.5 inches |
| Color | Grey |
| Cushion Style | Flat |
| Customer Reviews | 4.2 out of 5 stars 1,420 Reviews |
| Fill Material | Foam |
| Finish Types | Painted |
| Form Factor | Modern,Tilt,Ergonomic |
| Frame Material Type | Plastic, steel |
| Furniture Base Movement | Swivel |
| Furniture Finish | Plastic |
| Included Components | no components included |
| Indoor Outdoor Usage | Indoor |
| Item Depth | 28.9 inches |
| Item Dimensions | 27 x 27 x 42 inches |
| Item Dimensions D x W x H | 28.9"D x 28.9"W x 45.8"H |
| Item Type Name | TNB500HLDAGRAY |
| Item Weight | 49 pounds |
| Leg Style | Tapered Leg |
| Manufacturer | SIDIZ |
| Manufacturer Part Number | TNB500HLDAGRAY |
| Manufacturer Warranty Description | 3-year warranty for quality-related issues; details can be found on sidiz’s amazon profile. |
| Material | Mesh, fabric, sponge , PP, nylon , plastic, steel |
| Material Type | Mesh, fabric, sponge, PP, nylon, plastic, steel |
| Maximum Weight Recommendation | 275 pounds |
| Model Name | Sidiz T50 |
| Model Number | TNB500HLDAGRAY |
| Number of Items | 1 |
| Pattern | Solid |
| Product Care Instructions | Wipe Clean |
| Product Dimensions | 28.9"D x 28.9"W x 45.8"H |
| Reclining Position Count | 2 |
| Recommended Uses For Product | Office |
| Room Type | Office |
| Seat Back Interior Height | 20.5 inches |
| Seat Depth | 21.6 inches |
| Seat Height | 21.5 inches |
| Seat Material | Foam |
| Shape | Rectangular |
| Size | 28.9D x 28.9W x 45.8H Inch |
| Style Name | T50 White (Lumbar Support + Headrest) |
| Surface Recommendation | Hard Floor |
| Theme | Modern |
| Unit Count | 1 Count |
M**C
It lives up to the hype! *UPDATED REVIEW*
UPDATE 6/5/2020 I was so happy with this chair that I immediately gave it 5 stars and all the accolades that it deserves. Well, a few days into using the chair, I noticed that the seat cushion was defective. It was defective in a way that the foam gave out way too soon. I am 6' tall, 195lbs, and I don't think I weigh enough to wear out a seat cushion that quickly. So, I reached out to Sidiz and they were very helpful with my concern. They took time to figure out what could be wrong with the product that I received and sent me a replacement cushion. I received the replacement cushion just an hour ago. I inspected it and compared it to the original seat. They sent me a seat that's about an inch or so thicker. I also noticed that they used a different foam material. Or maybe it's just the color. Anyway, I installed the new seat and I have to say that it is so much better! Yes, it is much more firm than the original seat, but there is enough give to it that my butt settles into it quite nicely. I also experience pain on my coccyx due to a snowboarding accident years ago, and I don't have that problem with the new seat. This is the first time I experienced that an Amazon vendor has given this much attention to a customer's concern on their product. And for that, I give them 5 stars! As for the squeaking sound you hear, it's coming from the lumbar support section. It's a sound produced when 2 plastic parts exert pressure against each other. I imagine that this can be alleviated by adding a thin layer of padding. Unfortunately, there is no way to access the screws on the lumbar support unless you peel away the mesh back. The sound only comes out if you're moving too much on your chair. If you are very restless, then, you'll hear more of that sound. It doesn't bother me at all because I sit pretty steady. So, that's that. I am a happy camper! I recommend this product, not only because it's a good one, but because the company has a very good customer service! _______________________________________ ORIGINAL REVIEW: I just got this chair delivered minutes ago and I was so excited and assembled it immediately. It took less than 10 minutes! Lay down the feet, put the spring, attach the back onto the seat. Attach the arm rests. Position the chair onto the spring. Voila! All of the chairs that I have bought, returned, or given away, have all been short in height. I was skeptical about this one. But the fact that it has a seat height adjustment on top of the spring mechanism, is amazing. I am actually seated perfectly now, with both feet flat on the floor with my knees bent at 90 degrees! The other amazing thing about this chair is that it comes with adjustable armrest height. This enables me to position my arms properly, and straight reach to the keyboard and mouse. Again, that angle is critical and I am definitely glad that this chair allows me to have that. The adjustable lumbar support is also a welcome change. Gaming chairs just give you that pad, which does nothing, really. With the T50, the lumbar support can be adjusted to what your body needs! I did wish that the horizontal adjustment added another inch. Even the headrest is adjustable! They really thought of everything! One thing I wished it included was a selectable tilt angle/height. There is just normal and the high level. Nothing in between. Well, almost. They didn't add a leg rest. Then again, if they did, I'd be sleeping on this chair! And we don't want that now, do we? =)
J**V
Most comfortable chair I've owned, great Hermon Miller Aeron alternative
After buying three chairs for $250 or less I realize I needed to spend some money for all-day comfort. I was sold on the Herman Miller Aeron, but it was easily crossing a thousand dollars with the add-on options I wanted. I did some solid research on Aeron alternatives and I selected this one based on price (excellent), reviews, how it looks, and the ability to return it if I didn't like it. The chair was easy to set up, super comfy, and at first, my body was like, "this is different, it's a new chair, do you like it?" Within an hour I had stopped thinking about the chair and just worked the rest of that Friday. The following Monday I played around with all the adjustments and got it dialed in. It adjusts in so many ways, you can easily set it up to your needs. In the days after that, I never thought about the chair again. I can work all day in the most comfort I've ever had in a chair. For me, the adjustability and comfort alone are worth it. It happens to be affordable and looks great too. #### Here's my take after 1.5 weeks and 40 hours of sitting: Pros: The back tension is amazing. I leave it unlocked so I can lean back as far as I want and yet sit upright without locking the chair. I can easily rotate the handle to adjust the tension while sitting. When I want to lean way back, I turn it one rotation looser. ... The seat chair is plenty "long" and you can move it forward and back. I can sit with one leg Indian style and this is helpful. The seat cushion is just right. Soft enough to stay comfortable all day, thin enough so it feels appropriate for an office chair. The armrests are super cozy and go up/down and rotate inward/outward. It's easy to assemble. It's very stable. Feels great. Cons: It sits high, even in the lowest setting. I'm 5'10'' with slightly shorter than normal legs. But I didn't have any problems. Usually, chairs go lower. The forward seat tilt feature is an on/off thing. You cannot choose how much forward tilt you want. You can just turn it on. With that said, forward tilt felt great, but normal felt even better. So I keep it off. The headrest is useless. I find this true in all headrest chairs. The lumbar thing is cool, but I just tried to make it as if it didn't exist. I'm not a fan of these. I was able to get to where I don't notice it is there. ##### In conclusion, I did a lot of research, purchased three other chairs in the last four months, and this one is leaps and bounds better than those $200 - $250 chairs. I highly recommend it. This is the most comfortable chair I've ever owned.
S**E
Plenty of features for the price with few flaws
This is a great ergonomic office chair for the price considering it has many of the same features and adjustments as the Steelcase and Herman Miller chairs that cost 2-4x more. I came from a refurbished 10-year old Steelcase Leap V2 and found the Sidiz to be the better purchase for the money, but with two minor exceptions being the lumbar support and headrest. First, the way the lumbar is adjusted is intuitive, but it does not stay at the angle you set it to if you push on it too hard with your back. Isn’t that a little ironic as a support? If there was a way to lock it down, this wouldn’t be a problem. The lumbar support cushion itself could also be improved as it’s a little hard on my back. Luckily you can reduce the amount the lumbar support protrudes into your back to almost nothing so if you are concerned about it being uncomfortable, know it is essentially an optional feature. The other issue is the headrest. While it’s an amazing feature to include at this price point, it only works well in one position and that’s when your head is, well, resting on it and pushing it all the way backwards. You’re supposed to be able to adjust its angle forwards, almost to the point where it is pointing downwards towards the seat cushion (not that you would want this, but it has plenty of adjustment range) but the headrest doesn’t stay in the position you set it to as soon as you press your head into it, almost as if there is a loose screw somewhere. You can try to tighten it down more but I wasn’t able to. The headrest still functions just fine when pushed all the way back, but I only find it useful when I’m reclined and relaxing, not when sitting upright. Oh, and the complaints I’ve seen on other websites regarding the cushion being too thin and bottoming out after an hour of sitting are inconsistent with my own experience. Sidiz appears to have revised the cushion so it is thicker since those comments were made and I find it more comfortable than the Leap V2 I had as well as some of the mesh types from Herman Miller. Overall, I’d purchase this chair again if I needed a second one.
K**R
Outstanding chair, terrible Amazon home service support
This is by far the best chair I have purchased. I am 5'4 and the seat depth on the shortest setting is perfect. The lower lumbar support is also at a good height at the highest setting, but if my torso was taller, the lumbar support would be too low, so I would caution a taller person in buying this chair that needs sufficient back support. The headrest is at a comfortable position, although it is on the higher side so when it is moved forward to help what is advertised as fixing "text neck", it does not fall into the right spot and is rather uncomfortable. The seat is extremely comfortable and good for at-home work where I sit for the majority of the working day. The only complaint that I have, which is not related to the capabilities of the chair, is the support from Amazon home service. I originally purchased Amazon's service team to come assemble the chair for me because it looked like a quite complex setup with all the adjustments. After waiting at home during the four-hour time slot allocated for assembly, the tech never arrived. I tried to contact Amazon support and could not get through to a real person, and the only options were to check shipping, reschedule, or cancel. I finally sent a message to the seller and told them the tech never arrived. I got a response 15 minutes later that said they would contact my local repreatatives. An hour later after hearing no response, I contacted them again and asked if any progress had been made. They said I could reschedule for a later date. I ended up cancelling the Home Service Support and assembled the chair myself, which took less than 10 minutes. The chair is 7 peices with a 6 screw assembly and comes with a heavy-duty Allen key to screw everything together. They even ship the chair in a box that is the perfect size to rest the bottom of the chair on in order to attach the back. All of the ergonomic adjustments are shipped pre-installed so they cannot be messed up during assembly. The only semi-difficult task was to flip the chair upright once assembled because it is such a sturdy chair and is a little heavier than it looks. I have assembled furniture from places like IKEA and Wayfair (including office chairs) and this is by far the easiest assembly I have completed. If you are to purchase this chair, I would strongly discourage you to purchase the $60 Amazon home service assembly. You can just as easily assemble it yourself for much less hassle.
J**N
Great chair once you get it assembled. I'm recommeding a buy!
Im working from home most of the time now and spend over 8 to 10 hours a day in my chair. First let me say, that this chair came in a sturdy box and was very well-wrapped and protected. Once I finally got the back rest on it works and felt great. Good ergonomic controls to everything from lumbar support to seat slope, movement forward and back, armrests, headrests etc. Pretty much like my car but without the electricity. Once you get it dialed into your body it's great. Set the tilting control to softest, adjust the headrest, lean back and take a nice nap! seriously. Since my home office is also my den with my widescreen TV, I might just take to sitting in this thing to watch instead of the daybed/sofa I've been using. It's very well-designed, looks great and you can tell just by looking at it, it's a very well-constructed chair. Good materials and the seat cushion/cover can even be changed if and when it ever wears out or if you want another color. My only complaint is that when you look at the video and see how easy the backrest "just slides into the base assembly" you think terrific,, easy peasy. It took me over 30 minutes to figure out how to get these two pieces to mate so I could screw them together. I flipped the chair in every position you could think of to make this happen. I did it with the armrests on, on the floor. I did it with the armrests off with the base on a box like they suggested. It didn't come with a great assembly manual so I went to the web, watched the video 20 times in slow and stop motion, looked at the problem FAQs, and after FINALLY logic this out, I finally got them mated and assembled. If you buy this chair and I suggest that you do, what you have to do is, put the armrests on first, turn the base upside so that it rests on the armrest and the seat bottom at an angle, take the backrest and angle it very high towards to front of the seat/base, wangle the front of the two mounting brackets into place, then pivot the backrest into its final position and quickly grab a bolt to lock it in one side, do the same to the other side, lock em both down and then put the other 2 in place and tighten them all up. Once you're done , you'll have a great-looking and comfortable chair, which should last a long time. Worth the money.
A**X
Most uncomfortable and painful chair ever own
Unless your looking for a torture device for your back or enemies, have personally tested the chair for more than a few minutes elsewhere, or really into narrow, firm, rubbery plastic lower back lumbar trying to penetrate through you do yourself and your wallet a favor and stay far away from this "chair". As a 5'7" 150 lbs. male instead of rationally returning this chair after a week of suffering, I idiotically spent weeks trying to adjust a comfortable position to sit on this chair to no avail and now own an expensive torture device I dread sitting in without an external lumbar pillow as help. In addition the head rest is practically useless, unless you plan to lay all the way back in the chair as their is no way to lock any adjustment forward and is easily push backwards. The armrest are also the same rubbery plastic material as the lumbar support and useful only if you plan sitting at 90° since any tilt into the chair will shoot your arms upwards along with it due to the armrest being connected to the backrest instead of the seat (another heads up for the armrest unless you have a table or underside sliding keyboard tray with a max height less than around 30" you will be straining your wrist upwards as the max height for the armrest with the chair all the way up is around that high). The only normal thing about this chair (not something to praise about but ill take what I can) miraculously or due to lady lucks mercy is its seat as its cushion is comfortable enough for me to sit on for extended periods of time. As far as assembly went I found it rather easy, quick, and don't have any complain about it. Out of all dining chairs, cheap gaming chairs, or office chairs I have ever sat upon nothing will ever beat this chair in the amount of pain it brings within a few minutes let along hours. I have honestly no idea how this chair is rated so highly and question the type of body or sanity I need to find this chair comfortable.
S**K
Excellent Chair, Highly Adjustable
I work from home and need a chair that I can sit in comfortably for 8 hours a day. This chair provides so many options in terms of adjustment, and I was able to find the perfect settings for me. I have been perfectly comfortable sitting in this chair all day. It helps me to sit up straight, and the cushion is a good level of firmness for me. Personally, the armrests don't go high enough to reach my elbows when I'm sitting up straight, but I don't mind that. I also elected not to use the headrest, as it was too low for me. I am 6'3, so these things may be different for shorter people. I have not had any problems with the lumbar support as some reviews mention. I leave it in the highest and least protruding setting and it barely touches my back. The parts of the chair seem well made. Some of them are plastic but they seem to be high quality. The experience of opening the packaging and putting the chair together felt much more premium than I expected. The manufacturer clearly put some thought into how the chair is presented on opening the packaging. Overall, I would highly recommend this chair. It is well made, comfortable, and has so many options for adjustment that it should work for almost anyone.
L**O
Uncomfortable/Unable to assemble chair
Received this chair today with high hopes. I started to assemble it per instructions which seemed easy enough. However, the back of the chair did not slide all the way in into the seat due to defective parts. I could not secure the back to the seat due to the screw holes not aligned. I am returning the chair and will be getting a new one from Sidiz, unfortunately, I will have to wait another week. Hopefully the new chair will be properly made, and I will update this review. Update 08/05/21 - I received the replacement chair today and I was able to assemble it in about 20 minutes with no issues. It did take almost 1 week to receive the replacement chair, but I am satisfied with it and with Sidiz support. I am upgrading the rating to 4 stars and will be testing it for the next few weeks. So far it feels very comfortable, and there are numerous adjustments as many buyers have mentioned. I was unaware that there are so many plastic parts to the chair, but as long as it lasts, it does not bother me. I will update my rating with future results. Update 3/16/2022 - I have had this chair less than a year now and use it every day since I work from home. Originally, the chair was very comfortable, but now less than a year of usage, the seat foam has compressed to the point when it is almost like sitting on a hard board. After only a short time of sitting, I have to continuously get up as by behind starts to hurst and gets sore. I purchased this because of the good reviews and for the reasonable price, though not inexpensive. I am to the point where I may have to purchase another chair in a few months but will not consider this brand.
T**S
Excellent quality
Excellent quality and a well thought out design. Made in Korea...not China
L**G
Amazing quality, fast response and delivery.
Love their customer service, quality and design of the chair. No regrets, this is definitely one of the best purchase I’ve ever done.
M**E
Good Chair with Serious Padding Issues
Initially, this chair seemed like a good buy, but the seat padding has proven to be of poor quality. After only six months of use, it's practically as if you're sitting on the hard plastic below, offering little to no comfort or support. Dealing with the supplier for a resolution has been frustrating. They've asked me to jump through numerous hoops, demanding multiple photos and insisting on direct contact rather than handling it through Amazon's platform, which is inconvenient and time-consuming. Overall, I do not recommend this chair. The comfort level drops significantly after a short period, and customer service has been less than satisfactory. Look for a better quality option for your seating needs.
J**2
Not adjustable enough
This chair is alright, once I added in a footstool and some arm rest pads. As it is the chair lacks the range of adjustments found in other chairs like the ones in my WeWork office. The arm rests don’t go high enough and the chair itself doesn’t go low enough. Wish I hadn’t bought it but not sufficiently displeased to return it :)
Trustpilot
2 months ago
3 days ago