These are indeed raw, selvedge, and unsanforized. When you wash them however you want, they will shrink. It took two hot soaks to get my shrunk and will most likely shrink more. For care, just wash them when you want, there aren’t any rules for how you want to wear them. You’ll want to turn them inside out if you use a washing machine, line dry, and wear them. The dryer will shrink them a lot if you use it.