With all the over-achievement of Tilly, but bigger (older and wiser) and complete with adjustable/detachable shoulder strap you have a wonder-product, Tilly's Big Sis! . She is the perfect partner from desk to dinner, workday to holiday; the ultimate hybrid of style and function. With her zip opening, five compartments and inner zip pocket she keeps your prettiest pennies (and whatever else you fancy) locked and lovely. Tilly's Big Sis has a built in wallet, but will also fit our Sam Wallet.