Spartan Armor Systems® Flex Fused Core™ has been tested by an independent NIJ credentialed laboratory to verify that it meets NIJ level IIIA specifications, which means it will stop .44 MAG SJHP, as well as being Special Threat Rated to stop.357 SIG FMJ impacts. This soft armor is also multi-hit rated and is capable of stopping up to 6 rounds. The low-profile nature of the armor combined with the superior standards in quality control and production ensure that Spartan Armor Systems®™ Flex Fused Core™ Soft Armor IIIA Soft Body Armor will remain as rugged, durable, and effective as it is comfortable. This is a fantastic option for those seeking to use the Spartan Armor Systems® Flex Fused Core™ Soft Armor IIIA Soft Body Armor in discrete environments, or for those looking to enhance any of their Spartan Armor Systems® hard armor products.