SIHOO M18 Ergonomic Office Chair for Big & Tall with Adjustable Headrest, 2D Armrests, Lumbar Support, PU Wheels, Swivel & Tilt, Black

I’ve been using the SIHOO M18 for about three months now, and honestly, it’s been a game-changer for my work-from-home setup. I’m 6′ tall and was struggling with back pain from my old cheap office chair (you know, the kind you impulse-buy from a big box store).
This chair is pretty much designed for bigger folks like me. It’s got all these support points – head, back, hips, hands – which sounds technical, but it basically means I’m not aching after sitting for hours. The headrest is super adjustable, which is nice because I’ve always had that annoying issue where headrests hit at the wrong spot. With this one, I can move it up and down, even tilt it to get the perfect neck support.
The lumbar support is definitely one of the best features. You can actually adjust both how high it sits and how far it sticks out, which is kind of amazing for those days when my lower back is being finicky. I’ve also been taking advantage of the reclining feature – it locks in three different positions between 90° and 120°. Sometimes I’ll lean back during conference calls (camera off, obviously!) and it feels so much better than sitting bolt upright all day.
The armrests are pretty good too – not as fancy as some gaming chairs I’ve seen, but you can adjust the height and angle, which is all I really need. To be fair, I was skeptical about how all these adjustments would actually feel in practice, but they’ve made a real difference in my comfort level.
I’ve set this up in my home office, but it would work just as well in a corporate setting or for gaming. It’s comfier than my living room chair now, which I didn’t expect! The black design goes with pretty much everything, so it doesn’t stick out like a sore thumb in my somewhat mismatched office space.
One thing I was worried about was overheating – my old chair would make my back sweaty after a couple hours (gross, I know). The mesh back on this one actually breathes really well. I can sit through back-to-back Zoom meetings without feeling like I need to peel myself off the chair afterward. The seat cushion is firm but not hard – kind of like a good mattress where you sink in just enough.
Assembly wasn’t bad at all. I’m not exactly handy, but I managed to put it together in about 25 minutes with the included tools. Everything lined up properly, which hasn’t always been my experience with furniture assembly!
The build quality seems really solid – the chair doesn’t creak or wobble like my previous one did. It’s supposed to hold up to 330 pounds, and while I’m not testing those limits, it definitely feels sturdy. The wheels roll super smoothly on my hardwood floors without scratching them up, which is a huge plus.
Oh, and it comes with a lifetime warranty, which honestly was one of the selling points for me. I’ve had office chairs fall apart after a year, so knowing I can get replacement parts if something breaks gives me some peace of mind.
The dimensions are about 27.6″ wide and deep, and it adjusts from about 47″ to 51″ tall. The seat height range is pretty standard – 17.3″ to 20.5″. I’ve got mine set somewhere in the middle and it’s perfect for my desk height.
If you’re looking for a chair that’s comfortable for long hours but doesn’t cost as much as some of those fancy ergonomic brands, this one’s definitely worth checking out. My back pain has seriously decreased since I started using it.