Just tried the warm wet towel approach. I'll reassess after it dries and pursue one of those brushes if I need to. Probably not worth the hassle of returning for a refund only to have to pay more for a new pair with no guarantee of what shape that will come in. I'm pretty confident this is my last purchase from goat though. I've bought 20+ shoes from stockx and never had this issue. Maybe I've been lucky, but I'll stick with what's been working. Thanks for all the suggestions guys!