A crash-ready, portable, item compartmentalization device, comprising: a shell comprising, a first half shell and a second half shell, the first half shell and the second half shell have substantially similar dimensions and define an interior space and an exterior space, the first half shell and the second half shell are hingedly coupled along a common side such that the first half shell and the second half shell can be positioned in a closed position in which the first half shell and the second half shell are disposed parallel to and stacked in relation to each other such that the interior spaces are combined, and an open position in which the first half shell and the second half shell are disposed adjacent to and coplanar with one another, a first handle coupled to the first half shell along a side substantially parallel to a central axis, one or more pouches (900; 901; 902; 903) removably coupled to the shell in the interior space; characterised in that: the crash ready, portable, item compartmentalization device further comprises, one or more mount locations coupled to an exterior wall of the first half shell and configured to secure the shell to a surface; and one or more restraint straps (210, 235) coupled to the second half shell, wherein each restraint strap is coupled to an anchor at an end of the restraint strap and configured to secure the second half shell to an equipment mounting system; and the shell further comprises, a second handle coupled to the first half shell along a side substantially parallel to a mount axis and opposite from one or more feet, and a seam fastener coupled to an outer edge of the first half shell and the second half shell and couples the first half shell to the second half shell together when the shell is in the closed position. a shell comprising, a first half shell and a second half shell, the first half shell and the second half shell have substantially similar dimensions and define an interior space and an exterior space, the first half shell and the second half shell are hingedly coupled along a common side such that the first half shell and the second half shell can be positioned in a closed position in which the first half shell and the second half shell are disposed parallel to and stacked in relation to each other such that the interior spaces are combined, and an open position in which the first half shell and the second half shell are disposed adjacent to and coplanar with one another, a first handle coupled to the first half shell along a side substantially parallel to a central axis, a first half shell and a second half shell, the first half shell and the second half shell have substantially similar dimensions and define an interior space and an exterior space, the first half shell and the second half shell are hingedly coupled along a common side such that the first half shell and the second half shell can be positioned in a closed position in which the first half shell and the second half shell are disposed parallel to and stacked in relation to each other such that the interior spaces are combined, and an open position in which the first half shell and the second half shell are disposed adjacent to and coplanar with one another, a first handle coupled to the first half shell along a side substantially parallel to a central axis, one or more pouches (900; 901; 902; 903) removably coupled to the shell in the interior space; the crash ready, portable, item compartmentalization device further comprises, one or more mount locations coupled to an exterior wall of the first half shell and configured to secure the shell to a surface; and one or more restraint straps (210, 235) coupled to the second half shell, wherein each restraint strap is coupled to an anchor at an end of the restraint strap and configured to secure the second half shell to an equipment mounting system; and one or more mount locations coupled to an exterior wall of the first half shell and configured to secure the shell to a surface; and one or more restraint straps (210, 235) coupled to the second half shell, wherein each restraint strap is coupled to an anchor at an end of the restraint strap and configured to secure the second half shell to an equipment mounting system; and the shell further comprises, a second handle coupled to the first half shell along a side substantially parallel to a mount axis and opposite from one or more feet, and a seam fastener coupled to an outer edge of the first half shell and the second half shell and couples the first half shell to the second half shell together when the shell is in the closed position. a second handle coupled to the first half shell along a side substantially parallel to a mount axis and opposite from one or more feet, and a seam fastener coupled to an outer edge of the first half shell and the second half shell and couples the first half shell to the second half shell together when the shell is in the closed position.