There are five levels of body armor protection available. These are Level II, Level IIIA, Level III, Level III+, and Level IV. Level II. This is classed as soft armor and can protect against calibers such as .22 LR, 380, 9 mm, .40, .45 ACP, and .357 Mag. Level IIIA. This is a slight improvement and is in the soft and steel armor category.