The mesh back allows for good air flow so you doesn’t get hot T shape arms adjust up and down provide excellent support for arms. The chair swivels around very smoothly and quietly. The chair back adjustable lumbar support , you can change up and down and tension on the lean to you comfortable. The adjustable back support is a big plus.
https://www.amazon.com/Hbada-Ergonomic-Reclining-Adjustable-Headrest/dp/B078LN5CYJ