Using this diaper bag is a breeze. First, you can hang it on your baby stroller with the provided hook belts for easy access while on the go. Pack your baby's essentials like diapers, clothes, and bottles in an orderly way in the well - organized compartments. To charge your phone, connect it to the USB interface with the included cable and attach an external power bank. When it comes to the milk bottle pockets, they'll keep the milk at a good temperature with the aluminum foil insulation. The waterproof pocket is great for soiled or wet clothes. Remember to always use an external power bank when charging your phone through the USB interface. For maintenance, simply wipe the bag with a damp cloth. It's made of durable 600D polyester, so it can withstand daily wear and tear, but try to avoid sharp objects that could damage the fabric.