FIG. 1 is a perspective view of a calf brace according to the first embodiment of my new design;
FIG. 2 is a right side elevational view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a bottom plan view thereof;
FIG. 7 is a perspective view of a calf brace according to the second embodiment of my new design;
FIG. 8 is a right side elevational view thereof;
FIG. 9 is a front elevational view thereof;
FIG. 10 is a rear elevational view thereof;
FIG. 11 is a top plan view thereof;
FIG. 12 is a bottom plan view hereof;
FIG. 13 is a perspective view of a calf brace according to the third embodiment of my new design;
FIG. 14 is a right side elevational view thereof;
FIG. 15 is a front elevational view thereof;
FIG. 16 is a rear devotional view thereof;
FIG. 17 is top plan view thereof; and,
FIG. 18 is a bottom plan view thereof.
The broken lines illustrate environmental structure and form no part of the claimed design.