The high cut ballistic helmet is a type of combat helmet used by the New California Republic Army in the 2290s.
In the TV series[]
In the Fallout TV series episode "The Beginning", at least one NCR soldier, operating a medium machine gun, wears this helmet during the Battle of Griffith Observatory.
Behind the scenes[]
The real-world prop used for the helmet in the series appears to be based on the modern Ops-Core FAST helmet, developed by the American military contractor Gentex Corporation, but it is not named in-universe.