Troxel Spirit helmet. Low profile with maximum airflow vents. DialFit System for a better fit. Removable washable headliner. Meets all ASTM/SEI safety standards.
HAT SIZE:
SM: 6 5/8 - 6 7/8
MD: 7 - 7 1/4
LG: 7 3/8 - 7 3/4
HEAD MEASUREMENTS:
SM: 20 3/4 - 21 5/8,
MD: 22 - 22 3/4",
LG: 23 1/8 - 24 3/8" | 
