A cooler box or container for containing a one or more bottles for storing human breast milk or infant formula. The container includes four sidewalls and a floor defining an internal volume, and a closure is configured to enclose the internal volume and prevent or provide access thereto. The container is size and shaped for fitting in a stacked arrangement within a refrigerator or freezer, and is easily transportable while keeping the internal volume at a low temperature to prevent the breast milk within the one or more bottles from spoiling. In example embodiments, the container 10 provides for multiple functions throughout its usable life such as functioning as a shipping box or container, a user transport device, and a storage bin in hospital or medical facility refrigerator.
