The ornamental design for a facemask built into a garment, as shown and described.
FIG. 1 shows a front perspective view of the face mask built into garment.
FIG. 2 shows a front elevation view thereof.
FIG. 3 shows rear elevation view thereof.
FIG. 4 shows a side elevation view thereof, the reverse side being a mirror image thereof.
FIG. 5 shows a top plan view thereof; and,
FIG. 6 shows a bottom plan view thereof.
The long dashed broken lines illustrating a human figure are environmental and form no part of the claimed design.
The short dash broken lines on the mask indicate stitching that forms part of the claimed design.
The long dashed broken lines immediately adjacent to the shaded regions indicate boundaries of the claimed design and form no part of the claimed design.
The long dash broken lines illustrating a pocket in FIG. 3 represents stitching that does not form part of the claimed design.
The broken lines illustrating the material of the garment represent portions of the article that form no part of the claimed design.