Backpack with integral changing pad

A bag, comprising:

• a first housing defining a first interior compartment;
• a second housing defining a second interior compartment, wherein, in a closed state of the bag, the second housing is configured to face the first housing, so as to be opposed to the first housing in a lateral direction and aligned in a longitudinal direction in the closed state, and wherein, in an open state of the bag, the second housing is configured to extend away from the first housing in the longitudinal direction;
• and
• a first changing pad portion configured to be stored within the first interior compartment and a second changing pad portion configured to be stored within the second interior compartment, wherein each of the first changing pad portion and the second changing pad portion has a cover, and an outer surface of the cover of the first changing pad portion and an outer surface of the cover of the second changing pad portion are configured to be exposed in the open state of the bag, and the cover of the first changing pad portion and the cover of the second changing pad portion are isolated from an external environment in the closed state of the bag,
• a first joining member comprising a padded joining member attached between the first changing pad portion and the second changing pad portion,
• and a second joining member connected to the first joining member and extending across at least a portion of each of the first housing and the second housing,
• wherein the first housing and the second housing are joined by the second joining member at a bottom portion of the bag, the bottom portion being on an opposite side in the longitudinal direction from a handle.