What are hoodies made from?

getkind thought this was worth mentioning said

I ask because I am an old person and when I was younger I thought that “hoodie” was short for “hooded sweatshirt” and that meant they are made out of sweatshirt material. Yesterday my meh hoodie from the mehrathon arrived, and it is made out of two tshirts sewn together. Mind you, they are long-sleeved tshirts, and there is a hood, so there is certainly the form of a hoodie. Oh, I dunno. I just found out they aren’t teaching the kids in driving school to put their hands on the ten and two o’clock positions, so what do I know?