Abstract: A utility bag having a plurality of compartments that are connected to one another by an articulation segment is disclosed. The utility bag, particularly useful as an infant care bag, has a stacked position and an opened position. When the bag is transformed from the stacked position to the opened position it is unfolded about the one or more articulation segments. The utility bag additionally includes zippers to secure the compartments in the stacked position. Also disclosed are numerous features and sub features useful for stowing and securing items in a utility bag.