The FAST helmet series features a distinctive shell shape, with ear cut geometry which extends coverage over the rear occipital bone without load carrier interference, and optimizes weight distribution for increased stability, integration, balance, and comfort.

[5] In 2019, U.S. Special Operations Command awarded Gentex a contract worth $95 million to supply Ops-Core FAST SF Super High Cut Helmets that were released in 2018.

The type of UHMWPE material for the ballistic FAST models provides increased protection against NIJ Level IIIA handgun rounds.

The Velcro featured on to the helmet also allows for the wearer to attach national flag or the emblem of unit which they belong to, in addition to other IFF (Identification friend or foe) patches such as call sign and blood type.

[13] In addition to military and law enforcement, the non-ballistic version of the helmet also has gained considerable popularity among civilian occupations, such as outdoor sportsmen, journalists, disaster relief personnel and other field workers due to its modular design.