I was not 100% of Mesh material however it’s surprising me so far. It’s comfortable and doesn’t loose it’s comfort for the several hours I use it for work each day. I would recommend. Try it out before buying to be sure it will work for you. Everyone is different.
The chair was easy to assemble with the instructions provided. I needed one extra tool a clamping pliers as the back tension knob was to hard to turn by hand. However the tension knob works fine. The chair is very comfortable. I hope the the chair material holds up under wear.