The basic helmet shall be a flared, rear-brim design with a length of 15-5/8”, a width of 12” and a height of 7”.
Weight
Helmets with Internally Integrated Visors or Goggles
Basic configurations of helmets with internally integrated visors or goggles shall weight less than 3.40 lbs. (54.4 oz.). In addition to the integrated visor system, these configurations shall include: composite outer shell, retro-reflective trim, edge beading with D-ring, leather front holder, impact liner system, headband and suspension system, chinstrap, and Ear/Neck Protector.
Helmets with External Faceshields
Basic configurations of helmets with externally mounted faceshields shall weight less than 3.90 lbs. (62.4 oz.). In addition to the faceshield, these configurations shall include: composite outer shell, retro-reflective trim, edge beading with D-ring, leather front holder, impact liner system, headband and suspension system, chinstrap, and Ear/Neck Protector.