The ornamental design for a first aidkit, as shown and described.
FIG. 1 is an isometric view of a first aid kit in a closed position.
FIG. 2 is a top end view.
FIG. 3 is a front elevation view.
FIG. 4 is a right side view.
FIG. 5 is a bottom end view.
FIG. 6 is a rear elevation view.
FIG. 7 is a left side view; and,
FIG. 8 is an isometric view of the first aid kit in an open position.
The dot pattern and irregular cross hatch pattern of FIG. 8 represents hook and loop fastener and, except for the perimeter, forms part of the claimed design. The broken line perimeter of the hook and loop fastener shows portions of the first aid kit that form no part of the claimed design. The remainder of the broken lines represent stitching and do form part of the claimed design.