The ornamental design for a compressionband, as shown and described.
FIG. 1 is a top perspective view of a compression band showing my new design;
FIG. 2 is a right side elevation view thereof;
FIG. 3 is a left side elevation view thereof;
FIG. 4 is a front elevation view thereof;
FIG. 5 is a rear elevation view thereof;
FIG. 6 is a top plan view thereof; and,
FIG. 7 is a bottom plan view thereof.
The dashed broken lines in FIGS. 1-7 show unclaimed portions of the compression band. The dashed-dotted broken lines in FIGS. 1, 6, and 7 show unclaimed boundaries between claimed and unclaimed portions of the compression band.