Marine Motorcycle Helmet Light Armour Marines Or Army -What Is This Marine's Helmet? ?

Light Armour Marines or Army -What is this Marine's helmet? ? - marine motorcycle helmet

I am involved in any way in any type of activity HMMWV. HMMWV is not so, I do not think traveling with them. Not even as Capitol Hill or Hummer H3. So I am familiar with the art. I watch the series "Generation Kill". I like this program. I understand most of the Marines, the old PASGT helmets. A Marine in the second car to bear the federal government, but the protagonist, a helmet that resembles a motorcycle helmet. What is this helmet is the case, and say what kind of team member?