I claim the ornamental design for a variable compression foam roller, as shown and described.
FIG. 1 is a perspective view of the design of the present invention for a variable compression foam roller;
FIG. 2 is a front elevation view of the variable compression foam roller of FIG. 1;
FIG. 3 is a rear elevation view of the variable compression foam roller of FIG. 1;
FIG. 4 is a left side elevation view of the variable compression foam roller of FIG. 1; and,
FIG. 5 is a top end view of the variable compression foam roller of FIG. 1.
The right side elevation view of the variable compression foam roller is a mirror image of FIG. 4 and the bottom end view of the variable compression foam roller is identical to FIG. 5, and therefore a right side elevation and a bottom end view have been omitted.