We claim the ornamental design for a relief sleeve, as shown and described.
FIG. 1 is a top front left perspective view of the relief sleeve of the subject invention in an assembled and closed position;
FIG. 2 is a bottom rear right perspective view thereof;
FIG. 3 is a top plan view thereof;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is a right view thereof;
FIG. 6 is a left view thereof;
FIG. 7 is a front view thereof;
FIG. 8 is a rear view thereof.
FIG. 9 is an exploded top plan view of the relief sleeve in a disassembled and opened position with the two gel pack inserts removed in an unassembled and open condition;
FIG. 10 is an exploded bottom rear right perspective view thereof; and,
FIG. 11 is a top rear right perspective view of the relief sleeve; shown with one of the gel packs partially inserted in a condition of partial assembly.
In the drawings, the broken lines depict stitching, which form part of the claim.