What office chair do you use for long hour sitting?

Herman Miller Aeron.

I use a medium, there are 3 sizes. You can tell what size by the number of dots on the top back of the seat between the netting and plastic.

They're quite expensive but you can sometimes find them cheaper on eBay, office liquidations, and used on craigslist. It's notable that even for used ones the warranty is something like 10 years so if there are parts that need replacing you can make it like new.

I sometimes code for very long periods. Sitting in the Aeron with good posture I can get up at the end and feel completely fine. I've found that to be the case with 1 other brand I used in an office but it was significantly more expensive than an Aeron.

I use an Eames lounge an adjustable keyboard arm and a cantilevered UHD monitor. I've got a foam roller that I use some times to sit on a little higher or behind my back if I want to push the chair back and not be in a reclined position. It has helped my repetitive strain immensely. I don't know that I'd recommend it to other people though. I have specific arm problems and I'm also an idiot.

I bought one off amazon, made in china. It turn out to be a good chair but it did put a pressure on my thighs. So I bought a seat cushion and boy that changed everything.

Whatever chair you are buying, try and buy a seat cushion it will improve your comfort considerably.

I use a regular office chair without the arm rests because i sit cross-legged. Works much better for me then regular sitting.

Got one from steelcase with a mesh back, mesh headrest and a cushion seat. Its comfortable and airy.

I bought two years ago a second-hand Aeron chair and it's fantastic

I use a Varier Variable Balans kneeling chair.

Steelcase Leap V2

markus by ikea

cheap. practical. durable. comfortable.

Simply the best

Haworth Fern