with jeans. you can choose skinny jeans or straight ones. in order to have a look that is appropriate for the office, you should pair it with a shirt. white shirts are of course one amazing choice, but you can choose other colors too. printed shirts are an option, but as long as the print does not stand out too much.
when working with the public, in a bank for example, you should choose this combination, but if you do not work with the public, you can even choose to wear the leather sneakers for work with a skirt. jeans skirts are an amazing choice, just as any other casual skirt. 