The ornamental design for a snowboard harness, as shown and described.
FIG. 1 is a top perspective view of a snowboard harness showing my new design.
FIG. 2 is a side perspective view thereof;
FIG. 3 is a bottom perspective view thereof;
FIG. 4 is a top view thereof;
FIG. 5 is a bottom view thereof;
FIG. 6 is a side elevation view, the opposite side being a mirror image thereof;
FIG. 7. is a front view, the opposite side being a mirror image thereof;
FIG. 8 is a perspective view showing the design in use on an unclaimed snowboard; and,
FIG. 9 is a perspective view showing the design in use on an unclaimed snowboard being carried by an unclaimed person.
The broken line showing of the snowboard and human figure is included for the purpose of illustrating environment and forms no part of the claimed design.