FIG. 1 is a front and right side perspective view of a helmet showing our new design;
FIG. 2 is a front perspective view thereof;
FIG. 3 is a left and bottom perspective view thereof;
FIG. 4 is a rear perspective view thereof;
FIG. 5 is a top perspective view thereof; and,
FIG. 6 is a bottom perspective view thereof, depicting only part of the hose shown in the preceding figures.
The details shown in broken lines form no part of the claimed design.