An inner folding structure of lunch box mainly has a body made of a soft material, the body has a peripheral wall made of the soft material and defining an accommodating space by surrounding the accommodating space, and a bottom wall of the same material as the peripheral wall and integrally formed with the peripheral wall, one end of the peripheral wall is connected to the bottom wall, and another end of the peripheral wall is formed with an opening communicating with the accommodating space. A direction in which the opening extends toward the bottom wall is a supporting force direction, the peripheral wall has an inner surface facing the accommodating space, and an outer surface opposite to the inner surface, the inner surface is recessed with a plurality of folding grooves around the accommodating space, and the outer surface extends straight and flatly along the supporting force direction.

A retractable carrying container is provided, comprising an outer shell, an inner shell, and corresponding first and second threads. The outer shell is a hollow cylinder, and the inner shell is arranged inside the outer shell. An application head is installed on the inner shell. The outer surface of the inner shell has an upper stopper and a lower stopper, the upper stopper is arranged on the upper edge of the second thread, the lower stopper is arranged at the lower edge of the second thread, and the outer shell and the inner shell move with respect to each other by the interaction of the first thread and the second thread.

A portable, collapsible modular container system for transportation and storage is provided. The containers are modular and can be stacked in either extended or expanded position, collapsed, or a mix thereof. The container system is modular and customizable, and attachments such as wheel, handles, carry straps, tie down straps, and other accessories, may be added or removed at the option of the user.

Case for containing an item and method of manufacture comprising: a first panel having a perimeter edge and at least one hinge for folding the first panel. A second panel having a perimeter edge and at least one hinge for folding the second panel. A side panel. A first fastener configured to attach the side panel to the perimeter edge of the first panel. A second fastener configured to attach the side panel to the perimeter edge of the second panel. Method of manufacture of a layered material comprising the steps of: placing a substrate between a first and a second layer of self-reinforced polypropylene (srPP). Bonding the layers of srPP and substrate by: stitching, or riveting through the first layer of srPP, the substrate and the second layer of srPP; or gluing the first layer of srPP, the substrate and the second layer of srPP together.

A rolling luggage bag includes a cover coupled to a base, the base including a first side opposite a second side and a bottom face extending there between, a first wheel and a second wheel coupled to the base, the first and second wheels configured to rotate about an axis of rotation and separated by a first distance along the axis of rotation, at least a portion of each of the first and second wheels projecting from the first side and from the bottom face, and a third wheel and a fourth wheel coupled to the bottom face, the third and fourth wheels configured to independently swivel about a respective swivel axis and separated by a second distance extending between the swivel axes. When the rolling luggage is in an upright position, the first, second, third, and fourth wheels all contact a surface the luggage bag stands on.

Case for containing an item and method of manufacture comprising: a first panel having a perimeter edge and at least one hinge for folding the first panel. A second panel having a perimeter edge and at least one hinge for folding the second panel. A side panel. A first fastener configured to attach the side panel to the perimeter edge of the first panel. A second fastener configured to attach the side panel to the perimeter edge of the second panel. Method of manufacture of a layered material comprising the steps of: placing a substrate between a first and a second layer of self-reinforced polypropylene (srPP). Bonding the layers of srPP and substrate by: stitching, or riveting through the first layer of srPP, the substrate and the second layer of srPP; or gluing the first layer of srPP, the substrate and the second layer of srPP together.

A shipping container includes an insulated base, an upper perimeter portion including one or more securing mechanisms, insulated side panels, and an insulated lid. Each of the insulated side panels is movable between a respective first position and a respective second position, wherein the shipping container is in the first configuration when all of the insulated side panels are in the first positions and collapses into the second configuration when all of the side panels are in the second positions. The insulated lid is removably attachable for selectively closing and accessing an internal storage volume. Each of the securing mechanisms is configured to removably secure the upper perimeter portion to the insulated base when the shipping container is in the second configuration. Each of the securing mechanisms is also configured to removably secure the insulated lid to the upper perimeter portion in both the first and the second configurations.

Case for containing an item and method of manufacture comprising: a first panel having a perimeter edge and at least one hinge for folding the first panel. A second panel having a perimeter edge and at least one hinge for folding the second panel. A side panel. A first fastener configured to attach the side panel to the perimeter edge of the first panel. A second fastener configured to attach the side panel to the perimeter edge of the second panel. Method of manufacture of a layered material comprising the steps of: placing a substrate between a first and a second layer of self-reinforced polypropylene (srPP). Bonding the layers of srPP and substrate by: stitching, or riveting through the first layer of srPP, the substrate and the second layer of srPP; or gluing the first layer of srPP, the substrate and the second layer of srPP together.

Case for containing an item and method of manufacture comprising: a first panel having a perimeter edge and at least one hinge for folding the first panel. A second panel having a perimeter edge and at least one hinge for folding the second panel. A side panel. A first fastener configured to attach the side panel to the perimeter edge of the first panel. A second fastener configured to attach the side panel to the perimeter edge of the second panel. Method of manufacture of a layered material comprising the steps of: placing a substrate between a first and a second layer of self-reinforced polypropylene (srPP). Bonding the layers of srPP and substrate by: stitching, or riveting through the first layer of srPP, the substrate and the second layer of srPP; or gluing the first layer of srPP, the substrate and the second layer of srPP together.

The technology concerns a suitcase. More particularly the disclosure is directed to a collapsible suitcase.