NI Impact Armor is a special kind of body protection designed by Noi Industries (specifically Kyla Abonde) to be lightweight and durable while not using metals or ceramics to absorb impacts.
Impact Armor uses the similarly named Impact Rubber as its primary material. Impact Rubber itself absorbs a great deal of kinetic energy in terms of pounds per square inch, far more than typical rubber and more akin to material used in Kevlar Armor. The advantages of Impact Armor over kevlar are that its more lightweight, being just rubber, it can be designed to better fit a body thus leaving fewer vunerable spots, and unless penetrated any damage dealt is ignored. Overall durability is roughly the same as Kevlar, though velocity offers not change in the effectiveness of the armor.