The Fjallraven fanny pack is one of the best choices for a day bag. It is also a functional trifecta: it can hold a bottle of water, an apple, and a pack of gum. The fanny pack also features an adjustable webbing strap for your convenience. You can wear it as a
Fjallraven backpack or a belt bag. You can carry a wallet and keys on the belt bag and then stash the wallet and keys inside the main compartment. It is also small enough to be used as a hands free purse.