The ornamental design for a carrierstrap, as shown.
FIG. 1 is a perspective view of a carrier strap showing my new design;
FIG. 2 is a top elevation view thereof;
FIG. 3 is a bottom elevation view thereof;
FIG. 4 is a front elevation view thereof;
FIG. 5 is a back elevation view thereof;
FIG. 6 is a left side elevation thereof;
FIG. 7 is a right side elevation view thereof; and,
FIG. 8 is an example of operation wherein the carrier strap is engaged to carry an object.
Applicant clarifies that broken-line crosses (“X”) visible at opposing ends of the carrier strap in FIGS. 1, 2, 3 and 8 are to indicate stitching for joining portions of the carrier strap, while the broken lines that substantially surround the carrier strap in FIG. 8 are to indicate an environment in which the carrier strap may operate, for example while the carrier strap is carrying an object.