FIG. 1 is a front elevational view of a utility knife for horse/bull riders showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a left side elevational view thereof; and,

FIG. 5 is a right side elevational view thereof.

The broken line portion of FIG. 1 is for illustrative purposes only and forms no part of the claimed design.