Since I moved to Singapore from USA last year, I replaced all my polo shirts with thin dri-fit type of material (Changi Airport - Nike shot .. now gone). All my shirts from California were too heavy and hot (including dri-fit shirts).

I haven't wore any button down shirts to work as I sweat too heavily outside the office walking.

I was wondering if anyone ever had nice dress shirts made out of some sort of cooling material and where to get them made in BKK? I want to get some long and short sleeve shirts for work. Probably few pants as well. Thanks in advance.

Let go to Uniqlo shop and look for Linen shirt. It could suit for your case.

Go to a material shop and buy some linen or linen/cotton and then go to a good tailor and get shirts made to your design. I have done this and it cost you about the same as a quality shirt.