thredUP is the online site that allows America’s buys families to exchange kids clothing online. Simply list clothing online that you child has outgrown and browse the boxes of gently-worn kids clothing on tredUP.com. thredUP has been featured in Real Simple, USA Today, RedBook, andParenting.com. Membership is free and is a great way to keep your kids looking great without having to spend a fortune on new clothing. You can exchange with friends, neighbors, or people across the country!