I went to Value village up in the "good" Neighborhood, Lake city..

I bought a NICE pair of charcoal wool slacks with liner and
a fine but dense (shrunk once) v neck sweater which will be a perfect undergarment. I was thinking about the question "how will i know it is wool
if it doesn't have a label" while I went through all their stuff.
the things that are very very soft are NOT wool unless they have a really hairy appearance, and then they are angora (goat), rabbit (angora), or mohair.(goat)
or they are blended with a synthetic.

Wool even soft wool (like Merino) is going to be a tiny bit scratchy..
CASHMERE... is goat hair! (I just learned something. So wool lovers you can love sheep AND goats I do

ps it's better to go wool shopping at second hand stores in the summer.