Can I get this fashioned into a Nehru Jacket?
Blofeld would order a few.
Better yet; it gives new meaning to the term "under armor".
The head/neck shot is still king for routine patrolman and civilians (not condoning it). Battlefield soldiers will get better armor including some that go up the neck and helmets that include this product along with a kind of long johns to cover the rest of the body. With boots also laced with this; IED impact of losing limbs may be greatly lessened.
Slaughterbots are what we really have to worry about in the future. An enemy takes a picture of you from a distance; then programs that into the facial recognition software then at his chosen time sends the little mini drone to find you delivering the kill shot. Even battlefield solders have to take their helmets off sometime to sleep or clean up or just when they feel safe at their own base.
There are designs one can put on their face with face paint or tattoos that make facial recognition difficult or impossible (right now) so that might be one alternative.