What does east-west mean for this bag?

It describes the shape: the bag is wider than it is tall, so it lies long and flat rather than standing upright. That makes it easy to tuck under the arm but leaves less vertical room.

What fits inside the Balenciaga East-West Bag?

Expect a phone, cardholder or small wallet, keys, sunglasses and a lipstick. The shallow height makes a water bottle, a large wallet or a tablet a poor fit.

Does it have a shoulder strap?

It is a top-handle bag, carried in the hand or crook of the arm. There is no shoulder or crossbody strap shown.

How does it compare with a tote?

It holds far less than a tote and is meant for essentials only. In return it is more compact and structured, and it reads as an evening or city bag rather than a work bag.

How should I care for the leather?

Keep it away from water and prolonged sun, store it stuffed in its dust bag, and wipe marks gently with a soft dry cloth. Light-colored leather needs more frequent attention.