The Kate Spade Amelia mini convertible backpack might be petite, but it is designed with big functionality. Unzip the top and you will find enough space for your phone, wallet, keys, chocolate-covered almonds, plus an interior slip pocket that holds both of your phones or anything else you prefer to keep inside. Adjustable shoulder straps come off so you can carry it by the top handle, like a handbag. Attach one of those straps to each side and becomes a cross body.