HCI Full face yellow blade DOT approved motorcycle helmet. Meets or exceeds DOT standards. Lightweight ABS shell. Fully vented. Adjustable top and chin vents. Adjustable chin strap. High quality graphics.

Adult	Hat Size	Inches	CM
XS	6-5/8 - 6-3/4	20-87 - 21.26 in.	53-54cm
S	6-7/8 - 7	21.65 - 22.05 in.	55-56 cm
M	7-1/8 - 7-1/4	22.44 - 22.83 in.	57-58 cm
L	7-3/8 - 7-3/4	23.23 - 23.62 in.	59-60 cm
XL	7-5/8 - 7-7/8	24.02 - 24.41 in.	61-62 cm

It is important to get a proper fitting helmet. Helmets should fit snug. If the helmet is to loose and slides around on your head wind will catch underneath the helmet and lift if off your head while riding.