The ornamental design for an athleticcompressionshirt, as shown and described.
FIG. 1 is a front, top and right-side perspective view of an athletic compression shirt embodying my new design;
FIG. 2 is a rear, bottom and left-side perspective view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a left-side elevational view thereof, the right-side elevational view being a mirror image; and,
FIG. 6 is a top plan view thereof.
The broken lines in the drawings depicting the wearer is included for environmental structure and form no part of the claimed design. The broken lines showing of stitching is for the purpose of depicting portions of the article and form no part of the claimed design.