I will wash mine before the season according to how Exo guys recommend washing it. And then after to get the blood and dirt out. It probably doesn’t make much of a difference to the game, but I don’t like to smell the sweatI was searching on here for an answer to this same question. I know the elk will smell me no matter what after a couple days (minutes?) in the field, but I don't want the pack smelling so strongly that I can smell it. I'm curious what other guys have done.