Patent attributes
A portable pack includes a bag having a chamber defined by an end wall, a first side wall extending from the end wall, and a second side wall extending from the end wall and spaced apart from the first side wall. A distance between the first side wall and the second side wall defines a width of the chamber. The portable pack also includes an inner wall having a central panel, a first end panel connected to a first end of the central panel by a first living hinge and connected to the first side wall by a second living hinge, and a second end panel connected to a second end of the central panel by a third living hinge and to the second side wall by a fourth living hinge.