So comfortable my wife stole it – Sihoo Doro C300 Pro review
10.7.2025
Translation: Eva Francis
Pictures: Martin Jud
The Sihoo Doro C300 Pro is made by a brand that’s not well known in Switzerland. Its mesh design isn’t new, but it works a treat. I tested this office chair and loved almost everything about it. My wife even thinks it’s the best one we’ve ever had.
The Doro C300 Pro is Sihoo’s premium edition. It reminds me of a Herman Miller Aeron, a Razer Fujin Pro or even a Giroflex. It’s an office chair that, thanks to its airy mesh fabric, dynamic lumbar support and flexible backrest, promises to offer you ache-free hours in front of your monitor.
I’ve been testing this chair for a few weeks while I’m working from home. However, when I want to use it for an evening gaming session, it’s often already taken. Turns out my wife likes it just as much as I do. It’s no surprise really. After all, it’s more flexibly adjustable and has a lower minimum seat height than her previous, somewhat older Noblechair. This makes it more suitable for short people. And it’s great for taller people with relatively slim hips, too.
Stable base and elements that adapt well to the body
With a manual that’s easy to follow, assembling the chair takes around 25 minutes. This is slightly longer than with other chairs, as you first need to screw the metal base together. Once finished, I admire it in all its glory and am impressed by the many adjustment options. I’ve known the airy fabric mesh cover for many years, as some open-plan offices I’ve worked in have featured Giroflex chairs. And I’m looking forward to it because it feels like sitting on a cloud. The material adapts to the shape of my backside and keeps me from sweating.
Perfect for body sizes from 152 to 181 cm
This office chair is suitable for weights of up to 136 kilogrammes. And heights? In this regard, it’s extremely versatile. The seat height ranges from 43 to 53 centimetres. In addition, you can adjust the seat depth from 42.7 to 45.1 centimetres. The seat’s 47 centimetres wide.
The chair’s excellent adaptability means that, in theory, people up to around 190 centimetres tall should be able to fit in it comfortably. However, the height of the armrests does limit this. At 181 centimetres, I find it just low enough for me to sit with my right elbow at an ergonomically correct angle.
For shorter people, such as my wife who’s 152 centimetres tall, this isn’t a problem. I find it amazing how well she fits in the chair, as many competing products’ seat is too deep or too high up. However, if you’re shorter than my wife, you probably won’t find this chair comfortable.
Flexible backrest, armrests and headrest
The Sihoo’s equipped with a backrest that can be adjusted to four heights. If you want to take a nap, you can tilt it up to 135 degrees. It can be locked in various positions. The contact pressure can’t be adjusted, but it’s fine the way it is, in my opinion.
The height, depth and inclination of the headrest can be adjusted.
The rubberised armrests can be adjusted in different dimensions (6D), as with gaming chairs. The special feature of the Sihoo backrests is they can also be tilted upwards by up to 35 degrees.
In terms of shape, the rubberised armrest pads offer a slight hollow at the back that’s perfect for my elbow. If you incline the backrest, it keeps your arms from slipping. I find the tilt function useful for supporting my forearms when I’m playing on a gamepad or fiddling about on my phone.
Lumbar support adjusts almost automatically
What sets this chair apart from others I know is its lumbar support. It’s not integrated directly into the backrest, but attached in front of it as a separate element. As its basic position moves together with the backrest, you first change its height from the lowest to the second-lowest position – to the height of your lower back – before sitting down.
When sitting down, the support reacts flexibly to pressure. A spring mechanism, which isn’t too hard, automatically keeps it in the correct position by my lumbar vertebrae. Compared to the rigid lumbar supports I’m used to, this one always keeps light pressure on my back. If you’re used to a rigid support, this may take some getting used to. My wife and I found it perfect from the very first try.
In a nutshell
Fits like a glove
I expect a good office chair to adapt perfectly to my body. I also want it to have a breathable surface so my backside doesn’t sweat, even on hot days. Thanks to its mesh cover, this is a given with the Sihoo Doro C300 Pro. Clever adjustment options and the mesh material also ensure the office chair adapts to the shape of my bottom and back.
The lumbar support with its spring mechanism is particularly well designed. It moves into the correct position almost automatically when I sit down. The slight counterpressure it puts on the back may take some getting used to, but my wife and I find it very comfortable.
My wife’s also the reason I know this chair works for shorter people, too. She’s 152 cm and I’m 181 cm tall. Despite our difference in height, we both find the Sihoo Doro C300 Pro comfortable. The manufacturer states it’s suitable for people up to 190 cm. But I doubt that. Why? Because that would require the minimum armrest height to be slightly lower.
This office chair costs about as much as its competitor Giroflex. In my opinion, the price is fair. What’s more, I find it even more comfortable than the Giroflex. In terms of comfort for my rather lanky body, it’s on a par with the Recaro Exo Platinum – a gaming chair. My wife simply calls the Sihoo «the best chair».
By the way, it’s also available in white.
Pro
- Adapts well to the body (suitable from a height of about 152 cm)
- Mesh fabric is comfortable and allows your bum and back to breathe
- Active lumbar support (provides some counter pressure)
- Sturdy metal base, plastic feels solid
Contra
- Armrests are rather high up (could be a problem if you’re over 181 cm tall)
Martin Jud
Senior Editor
martin.jud@digitecgalaxus.chI find my muse in everything. When I don’t, I draw inspiration from daydreaming. After all, if you dream, you don’t sleep through life.
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