I have about five of them shirts. The website doesn't say what the material is...big red flag there that they don't offer that - unless I missed it.

The ones shown look like the polyesther ones and, as mentioned, they can be hot. You don't say where on the planet you live so that may be good or not so good.

I like the poly ones because I can wash them in the machine (inside out they say), and, because of the plunging neckline which shows off my Scottish heart tattoo on my chest.

I have another ghillie shirt in natural cotton. I like it much better in the Arizona heat.

My daughter sent me a ghillie shirt for Christmas that has a very deep neckline and a LOT of ruffles...but not a tux type shirt...its natural cotton. It came from a Ren Faire outfitter in Medford Oregon, lost the name when I tossed the bag it came in. Guessing its more for Ren Faires though I may try it with a hand sewn kilt when an opportunity presents.

Ron