Convertible bag

A bag, comprising:

• a bottom surface including a central portion and two movable portions on opposite sides of the central portion, the two movable portions differently positioned with respect to the central portion depending on whether the bag is in a folded state or in an unfolded state;
• a first side portion located at a first side of the bottom surface and foldable in response to a force applied to the bag, the first side portion having first magnets located at different portions of the first side portion and attracted to each other to facilitate maintaining the bag in the folded state;
• a second side portion located at a second side of the bottom surface and foldable in response to the force applied to the bag, the second side portion having second magnets located at different portions of the second side portion and attracted to each other to facilitate maintaining the bag in the folded state and the second side of the bottom surface opposite to the first side of the bottom surface;
• a third side portion located at a third side of the bottom surface and connecting the first side portion and the second side portion;
• and
• a fourth side portion located at a fourth side of the bottom surface and connecting the first side portion and the second side portion, the fourth side of the bottom surface opposite to the third side of the bottom surface,
• wherein the third side portion and the fourth side portion are configured to move between i) a closed bag state in which the third side portion and the fourth side portion are in contact to each other and ii) an open bag state in which the third side portion and the fourth side portion are separated from each other, and
• wherein the first magnets and the second magnets are configured to be attracted to each other to maintain the bag in the folded state while the third side portion and the fourth side portion are in the open bag state.