The ornamental design for a pair of gripsocks with open tops, as shown and described.
FIG. 1 is a top perspective view of a pair of left and right grip socks showing my new design;
FIG. 2 is a front elevational view of the left and right socks of FIG. 1;
FIG. 3 is a rear elevational view of the left and right socks of FIG. 1 thereof;
FIG. 4 is a right side elevational view of the right sock of FIG. 1, the left side elevational view of the left sock of FIG. 1 being identical thereto;
FIG. 5 is a left side elevational view of the right sock of FIG. 1, the right side elevational view of the left sock of FIG. 1 being identical thereto;
FIG. 6 is a top plan view of the left and right socks of FIG. 1; and,
FIG. 7 is a bottom plan view of the left and right socks of FIG. 1.
The broken lines shown in the drawing views are for purposes of illustrating portions of the pair of grip socks that form no part of the claimed design.