While most of us run around town with nylon drawstring bags toting our gym gear, leave it up to designer Alexander Wang to upgrade us to a sultry leather version. For what's being called the first ever crowd-sourced philanthropic bag, Wang tapped a bunch of friends to make squiggly doodles on their Samsung Galaxy Note II that ultimately ended up in the final design of this luxury gym bag. Priced at $550, the Wallie knapsack will be available in Alexander Wang boutiques and online with proceeds benefitting Art Start, the charitable organization that helps at-risk youth through creative arts workshops.