Helmet

FIG. 1 is a front perspective view of a helmet showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left-side view thereof;

FIG. 5 is a right-side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof;

FIG. 8 is an enlarged view of the encircled portion in FIG. 6 ; and,

FIG. 9 is an enlarged view of the encircled portion in FIG. 7 .

The evenly-dashed broken lines in the figures depict portions of the helmet which form no part of the claimed design.

The dot-dash broken lines in the figures represent boundaries of the claimed design and form no part thereof.

The dot-dot-dash broken lines encircling portions of the claimed design that are illustrated in enlargements form no part of the claimed design.