Small Crossbody Bag

A small crossbody bag is judged by its depth more than its width, because depth decides whether a wallet lies flat or has to stand on its edge. A slim style a couple of inches deep stays flat against your hip under a jacket; a deeper one swallows a glasses case beside the wallet and still zips without strain. Stack your phone, cards and keys on a table, measure the height of the pile, and pick the depth that clears it.