The Modular Scalable Vest (MSV) is a
bullet-resistant vest that has been introduced by the
United States Armed Forces
The United States Armed Forces are the military forces of the United States. The armed forces consists of six service branches: the Army, Marine Corps, Navy, Air Force, Space Force, and Coast Guard. The president of the United States is ...
in 2018.
The Modular Scalable Vest is replacing all other body armor systems in use, including the
OTV (Outer Tactical Vest),
IOTV (Improved Outer Tactical Vest and
SPCS (Soldier Plate Carrier System).
The MSV is 5 pounds lighter when fully loaded with ballistic plates compared with its predecessor, the IOTV. The MSV fully loaded weighs 25 pounds.
The MSV has a four-tier configuration, allowing it to be scaled up or down depending on the threat and mission requirements
#Concealable soft body armor
#Hard armor plates and soft body armor
#Carrier with ballistic plates and soft armor
#Carrier with ballistic plates and soft armor as well as a “ballistic combat shirt" with "built in neck, shoulder and pelvic protection and a belt system to move items from the vest to the hips.”

Only a few ballistic material suppliers have been able to comply with the armor panel weight specifications demanded by the US Military: Teijn Aramid, DSM Dyneema and Honeywell Spectra. The U.S. Air Force has begun to issue the MSV to replace the IOTV, with the goal of issuing it exclusively by the end of fiscal year 2022.
References
{{Types of armour
Plate carriers
Military equipment of the United States
Body armor
Ballistic vests
Military equipment introduced in the 2010s