The ornamental design for a raincap, as shown and described.
FIG. 1 is a rear elevation view of a rain cap according to the present invention;
FIG. 2 is a front elevation view of a rain cap according to the present invention;
FIG. 3 is a left side elevation view of a rain cap according to the present invention;
FIG. 4 is a right side elevation view of a rain cap according to the present invention;
FIG. 5 is a top plan view of a rain cap according to the present invention;
FIG. 6 is a bottom plan view of a rain cap according to the present invention; and,
FIG. 7 is a perspective view of a rain cap according to the present invention, shown being worn.
The broken lines illustrated within the bounds of the claimed design represent an environmental structure that forms no part of the claimed design. The broken lines in the drawing in FIG. 7 showing the head and neck of a person represent environmental matter that assists in illustrating as to how the claimed design may appear when worn and form no part of the claimed design.