Express Soft Armor Inserts Set of 2Express Soft Armor Inserts The Express Inserts are designed to fit most t shirts, hoodies, vests and plate carriers and can be used either as additional protection or as a standalone armor solution. They are most commonly placed behind a hard armor plate to add soft armor coverage, but they can also be worn on their own as Level IIIA or IIIA+ protection. With a slim, tapered profile and an unobtrusive design, these inserts offer a highly concealable