Sorry, I was just clicking around their site and I found this statement, which floored me.

I know a lot of people enjoy wearing acrylic kilts because they specifically want an inexpensive knock-around kilt they don't have to worry about. But this is perhaps the first time I have ever seen a vendor attempt to make the argument that acrylic kilts are actually superior to wool kilts!

Our kilts are indeed made with acrylic wool rather than old sheep’s wool for its many benefits. While still keeping the quality 16oz fabric, our acrylic wool stays cooler compared to a sheep wool kilt. Acrylic wool has also proven to be more durable, affordable, and long-lasting than sheep wool.