SIHOO M18 Ergonomic Office Chair for Big and Tall People Adjustable Headrest with 2D Armrest Lumbar Support and PU Wheels Swivel Tilt Function Black
Original price was: €170.€160Current price is: €160.
Price: $169.97 - $159.99
(as of Aug 02, 2025 13:27:48 UTC – Details)
From the brand
SIHOO focuses on the field of ergonomics, our ergonomic office chairs are designed with fashionable modern office chair to sit health life as design purposes, scientifically measure health and comfortable seats, provide you with a comfortable, reasonable, scientific Health sitting posture experience.
D03
Height-Adjustable Standing Desk -NEW
Doro C300
Ergonomic technology pioneer of the year, multi-functional adjustment
M18
The first ergonomic office chair exclusively for you
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Why choose us?
SIHOO is a professional ergonomic office furniture supplier. With innovative design, independent production and the latest sales channels, our ergonomic office chairs are designed with stylish and modern office chairs, which can provide you with a comfortable, reasonable and scientific healthy sitting experience.
Customer First
SIHOO office chair is free to return within 30 days. And we promise to provide zero-profit product parts during the three-year period. If you meet any problems, find us, and we will provide you with satisfactory solutions.
【ERGONOMICE OFFICE CHAIR】- The ergonomic chair provides 4 support points (head/back/hip/hands) and proper lumbar support. SIHOO designs ergonomic chairs to meet different needs, with seat height, headrest adjustment, lumbar support and back support adjustment, suitable for long sitting and reduce your pain. Suitable for people 5’6″ to 6’2″ tall.
【For Home and Work】 SIHOO chairs can be applied in different scenarios according to the needs of different consumers in needs. Can be used as student office chairs, computer chairs, ergonomic chairs, desk chairs, gaming chairs; not only can sit comfortably, but also save money;
【Breathable Mesh】 Mesh Office Chair Premium Backrest features flexible non-pattern mesh fabric while keeping your back cool and comfortable, allowing you to sit focused and relaxed at the same time.
【High Quality & Easy Assembly】This home office desk chair passed the BIFMA test and the 1136kg static pressure test. Our ergonomic office chair can support up to 150kg. Simple instructions allow anyone to put the chair together in eight easy steps.
【Satisfaction Guaranteed】Customer satisfaction is our first priority. Free returns and refunds within 30 days if the SIHOO office chair is faulty or if there are any other quality-related issues. We promise to provide free replacement parts during the 3-year warranty period. If you encounter any problems, please contact us and we will do our best to find a satisfactory solution.
Customers say
Customers find the office chair well-built, comfortable, and easy to assemble with clear instructions. They appreciate its generous lumbar support that helps maintain healthy posture throughout the day, and its adjustable features, including the headrest and armrests. Customers consider it good value for money and like its sleek design. Regarding size, while some customers find it large enough for their needs, others note it’s not suitable for big and tall people.
9 reviews for SIHOO M18 Ergonomic Office Chair for Big and Tall People Adjustable Headrest with 2D Armrest Lumbar Support and PU Wheels Swivel Tilt Function Black
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Original price was: €170.€160Current price is: €160.
RobC –
Better than expected…
For reference, I’m 6’1″ (fluctuating between 240-260 lbs. right now). I have a tech & writing job, so I spend a lot of time at the computer even at home. I also have numerous chronic joint injuries to include degenerative discs.Purchased on sale, so it cost the same as the last couple “gaming chairs” I had purchased. I could tell it was already several degrees of higher quality than those other chairs just from pulling it out of the box.Other chairs have thin metal bases which over time bend, the flimsy plastic handles snap off, and there just isn’t enough seat area to go around. Not so with this chair. I am happy with my purchase.Pros:* Sturdy Metal Construction where it is expected; Extra thick plastic where the plastic goes.* 5 wide profile metal pronged wheel base; sturdy-smooth rolling wheels; well-balanced in all reclining positions; you’d have to try really really hard to tip it over.* 3 hard-set recline positions; Spring release recline mechanism (so you don’t get thwacked); it doesn’t recline to a full lying position, but it reclines far enough where you could fall asleep if using an external foot rest. The full upright is fully upright with no wiggle. Yes!!!* relatively deep seat; seat is wide enough for a decent manspread, especially since the arms can actually be adjusted outward rather than the static squeeze on the thighs;*noticeably more gas pressure in the cylinder makes it sturdier;*mesh back will enhance breathability; lumbar support is adequate (probably) for most peopleNeutrals/Cons:*The seat cushion is semi-firm, more so than “gaming chairs” which are soft and always bottom out very quickly. It isn’t uncomfortable but not comfortable either, mostly because it feels like they designed the front for an edge sitter, rather than contouring it for your thighs. A 12-hour sit might not be in the cards. From experience, duplicating the mesh backing setup in the seat would be more supportive and comfortable than a foam seat. I put my silicone honeycomb seat pad on it. It fits perfectly so most minor inconveniences solved.* The head rest doesn’t fully extend to my height for what you would expect for a head rest. However, I found that I could adjust it to where it is a neck rest and cradles the base of my skull. It is actually more comfortable when used this way, especially if you have disc issues.* The lumbar support, as I said, is adequate, but not up to the level of my $850 office chair. That’s to be expected. A little more adjustability would be preferred though if you are going to advertise it as a feature. The seat is deep enough that I could add my own lumbar pillow, so problem solved.Trivial:* The instruction manel is a tad better than those Swedish manuals, and much better than most Chinese manuals. It is multi-lingual and everything is labelled properly and matches the labelling on the parts. It should be noted that a Shem is not a historical figure, it is a Washer.* Extra bolts and shems for every type. Not needed but appreciated.* Everything lines up as expected and tightens well. Even if there was slight manufacture defect, the engineers give you enough wiggle room for adjustments that you could even accommodate for effects.* A T-style tool was included. It was designed to make tightening a breeze and not aggravate my arthritis or rip skin off. Thank you!* A pair of cotton work gloves were included. They reminded me of Mickey Mouse gloves. The size reaches from my wrist to my first knuckle, so definitely not fitting. Also, the well designed parts and tools ensured there was little to no risk of hurting yourself. Although the thought is appreciated, the manufacturer could probably skip the inclusion. I will add them to my annual donation pile.Update (10/23/2022): Figured out the lumbar adjustment. It is now extremely comfortable. Disregard previous complaint. I’ve been sitting in this for hours now, and it actually makes my back feel better.
B. Meekins –
Solid chair for a solid price
This chair is worth every penny. It’s comfortable, supportive, and easy to assemble. I do recommend buying rollerblade-style wheels to replace the stock ones, but that’s about it.If this chair is ever built to be a few inches taller, I would be in heaven.
John in Bethesda –
Good medium priced office chair with a few problems
I bought this during Prime Days and got a good deal. I am not an expert on chairs, but I’ve bought about six office chairs in the last decade. These are good chairs. I would buy again.Pros:- reasonable price- comfortable for both my self and my wife- seat is large, good thigh support, and soft- adjustable arm rests, lumbar supports, head rest, and tilt stiffness – nice!- somewhat easy to assemble- the screws and parts are in a blister pack with a couple extra partsCons:- rollers do not roll as easy as some chairsAssembly notes:- as a retired tech writer, I’ll give the Assembly Guide a 70% – it’s all illustrations and the illustrations are not large enough – the parts labels don’t always match the assembly instructions- don’t forget the washers – it’s hard to see in the illustrations, but most bolts use them- the casters are difficult to install into the bottom frame – use a light coat of three-in-one oil on the caster stems and they will go in easily- it is difficult to attach the chair back to the seat – put both parts on the ground and concentrate on getting one bolt in, the others will be easy to get in
Dre –
Comfortable. Great Value for money. Easy to assemble. Great customer service.
I’ve been looking for a new chair to replace a cheap $30 chair i bought off of Amazon last year that had been killing my back and shoulders. I wanted something in the $150-$200 range and settled on the M18. Shipping was a fast 3 days with Prime and the box arrived in great condition.All parts were separately wrapped or in their own boxes. Came with all hardware and nothing was missing. Assembly took me a little longer then normal because i have rotator cuff injury in my left shoulder so that arm is mostly useless. The most difficult part for me was attaching the wheels to the base. Other then that it was simple.Once the chair was assembled i sat in it for the first time and started making my adjustments with the recline feature, armrest level along with the headrest. Next i reached around for the lumbar support knob and tried to adjust it but with my bad shoulder i decided to just get out of the seat and turn it around and adjust it with both hands. After spinning the chair a round to get at the lumbar knob i noticed a large crack in the plastic in the middle of the back of the lumbar plastic piece. I had not made any lumbar adjustments yet so i assumed this is how i received it. The lumbar support comes preinstalled to the backrest so it either was damaged before or during the shipping process. Either way it was damaged before being delivered to me. The lumbar support still functioned properly but it was still broken.I decided to contact Sihoo’s customer support that came along with the installation instructions regarding the damaged lumbar piece. I received a reply the next day and after sending them some more info about my order and a couple pics they shipped me a replacement part which took a week to arrive. I swapped out the damaged part and after owning the chair for a week so far i am really happy with my purchase.Im about 5’10 180lbs. At its highest height level my feet reach the ground comfortably flat footed. The backrest fully covers my back and the headrest adjusts very well to sit on the back of my lower head/upper neck. The armrests only go up and down….not forward and back or tilt inwards. This is fine for me as they are grooved to fit your forearm while sitting at your desk/keyboard. The armrests are also a soft cushioned rubber material…not a hard plastic. The mesh of the backrest and headrest are good material and seem well made. The seat is very wide and the cushioning is firm which i prefer. Usually more firm cushioning seems to last longer and hold its form. The base of the chair is VERY sturdy and made of all metal. My chair is on carpet and holds its position very well. As far as recline goes you can set it to recline all the way back, half way or lock the chair in the upright position. You can also adjust the resistance on the reclining feature.So that being said im very happy with my purchase. It arrived with a slight flaw which the company corrected in a fast manor and was very polite in their customer support. I personally don’t have a lot of experience with many office chairs and have never used a high end chair($500-$1000+) chair before to make any comparisons. All my chairs for the most part have been from local stores like Staples or Office Depot. Id recommend this over anything they carry in this price range….and i went and looked at their products before buying this chair as well.
jubiezPoobies –
Very easy to setup and instructions were pretty simple to follow. Plus they have video instructions that you can scan on the manual to get. A VERY comfortable chair that lets you lie back and relax with ease. This is my first ergonomic chair ever, so Iâm really impressed. Plus itâs a HUGE upgrade from the chair I had before (picture attached).
Andrea Cipriani –
Ho recentemente acquistato la SIHOO Sedia Ufficio per migliorare la mia postazione di lavoro, e sono davvero soddisfatto dellâacquisto. Questa sedia è diventata un elemento essenziale per le mie lunghe ore trascorse alla scrivania, quindi voglio condividere la mia esperienza.Comfort eccezionale per lunghe ore di lavoro ðºLa prima cosa che ho notato è quanto sia ergonomica questa sedia. Il supporto lombare regolabile è perfetto per sostenere la parte bassa della schiena, evitando quel fastidioso dolore che spesso si sviluppa quando si sta seduti troppo a lungo. Posso regolarlo in base alle mie necessità e avere sempre una postura corretta. Anche il poggiatesta è unâottima aggiunta, specialmente durante le pause o quando voglio rilassarmi un attimo. La poggia-braccioli regolabili, che posso alzare o abbassare facilmente, contribuiscono a un comfort maggiore, soprattutto quando scrivo o lavoro al computer.Materiali di qualità e design solido ðLa qualità dei materiali è davvero alta. La tessitura della seduta è resistente ma allo stesso tempo morbida e traspirante, quindi non mi suda la schiena anche durante le giornate più calde. Il rivestimento in rete è molto comodo e mi permette di non avere quella sensazione di âsurriscaldamentoâ che si può avere con altre sedie. Anche la struttura in metallo è robusta e ben costruita, dandomi la sicurezza che la sedia durerà nel tempo.Regolazioni facili e personalizzabili âï¸Mi piace che tutte le regolazioni della SIHOO Sedia Ufficio siano facili da usare e rapide. Posso modificare lâaltezza della sedia in un attimo, e lo stesso vale per il supporto lombare e il poggiatesta. La sedia è molto adattabile, quindi posso trovare la posizione ideale per lavorare o rilassarmi. Inoltre, la possibilità di regolare la resistenza allo schienale (meccanismo di inclinazione) è perfetta per quando voglio fare una breve pausa e reclinare la sedia, godendomi un momento di relax.Facilità di montaggio ð§Il montaggio della sedia è stato davvero semplice. Nella confezione sono presenti tutte le istruzioni chiare e facili da seguire. Con pochi passaggi, sono riuscito a montarla senza alcun problema. Anche se non sono un esperto di montaggi, lâho fatto in circa 30 minuti senza stress.Design moderno e adatto a ogni ambiente ð¥ï¸Il design della SIHOO Sedia Ufficio è elegante e moderno, con un aspetto che si adatta perfettamente sia a un ambiente di lavoro professionale che a un ufficio domestico. à abbastanza compatta da non occupare troppo spazio, ma allo stesso tempo è confortevole per lunghe sedute.Conclusioni ð¡Se stai cercando una sedia ergonomica che ti aiuti a mantenere una buona postura durante il lavoro, la SIHOO Sedia Ufficio è davvero una scelta eccellente. Il supporto lombare e il poggiatesta sono fantastici per il comfort e il benessere, e la possibilità di regolare ogni parte della sedia la rende perfetta per qualsiasi esigenza. à una sedia solida, ben costruita e ideale per chi passa molte ore alla scrivania, come me. Se ti interessa una sedia ufficio che unisce comfort, ergonomia e design moderno, ti consiglio sicuramente di provarla! â¨ð¼
Yuki Yu –
Sturdy, but not heavy chair. Strong back support and very comfortable head rest and seat cushion. Great bargain at a 35% off.
R –
One of the nuts was completely loose in the seat. I will have to fix it myself.
Timo ‘redson’ W. –
Der SIHOO M18 hat meine Erwartungen an einen ergonomischen Bürostuhl absolut erfüllt. Die verstellbare Kopfstütze und Lendenwirbelstütze sorgen für eine individuell anpassbare Sitzhaltung â gerade bei längeren Arbeitsphasen eine echte Entlastung für den Rücken.Die hohe Rückenlehne unterstützt die Wirbelsäule optimal, und das atmungsaktive Mesh-Material fühlt sich auch an warmen Tagen angenehm an. Alles wirkt solide verarbeitet, die Mechanik läuft ruhig und zuverlässig. Auch die Montage war unkompliziert â in unter 30 Minuten stand der Stuhl einsatzbereit.Besonders gut gefällt mir das moderne, unaufdringliche Design in Dunkelgrau. Der Stuhl passt perfekt in mein Heimbüro und bietet ein sehr gutes Sitzgefühl â selbst nach mehreren Stunden. Absolute Kaufempfehlung für alle, die viel am Schreibtisch sitzen! ð¼ð§ââï¸