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I've had this Italmodern bungie cord office chair for 5 years now. Looks the same as it did the day I put it together. It's the only chair that doesn't make my legs/butt go numb. I can sit in it for hours at a time with no problems. My first worry was how long the cords were going to hold up. They haven't frayed or become loose in anyway. They are still very tight and springy. Highly recommend this chair.
We have these chairs at work (I'm a lead web developer) and we all love them. Bang for the buck I'd say you can't go wrong with them. I pull 18 hour days some times, and being uncomfortable sitting has never once happened. Here's the chairs we have
This chair is super comfortable, I sit in my chair for a long time whether I'm gaming, editing video or designing. The only drawback I've found is that you need to wear pants or you will get lines indented on your thighs.
I got this chair because I had the same problem.
ITALMODERN Bradley High Back Bungie Office Chair, Black Bungies / Graphite Black Frame https://www.amazon.com/dp/B001OW7JSE/ref=cm_sw_r_awd_t.6ZwbYNAANPD