There are 5 threat levels for ballistic body armor but for most applications the two levels that are significant for soft body armor are Level II and Level IIIA. Level III and IV are for hard body armor plates designed to protect against projectiles at rifle speeds.What is Level 3A body armor?
Level 3A Body Armor. It is light enough and thin enough that it can easily be worn underneath clothing in a covert plate carrier. 3A armor is ideal for both law enforcement officers and civilians who require more protection but do not want to be weighed down with the heavy steel of level 3 body armor.