https://www.justnet.org/pdf/Understanding-Armor-Protection.pdf
![NIJ Standards and Armor Protection Levels information scheme](https://i2.wp.com/bulletstoppers.eu/wp-content/uploads/2020/04/Understanding-Armor-Protection-small.jpg?fit=794%2C1024&ssl=1)
Find more information on NIJ Standards at https://www.ncjrs.gov/pdffiles1/nij/223054.pdf
https://www.justnet.org/pdf/Understanding-Armor-Protection.pdf
Find more information on NIJ Standards at https://www.ncjrs.gov/pdffiles1/nij/223054.pdf