John- I would not even ATTEMPT to offer you advice- since if it is in error, may result in a mortician's bill- Not only compressed, but HELD in a compressed state- how are you planning to do that? Kevlar must also be protected from moisture, which is why a vest has the vinyl type stuff over the kevlar. When a bullet hits wet kevlar, the mositure is turned to live steam, which shears the fabric.
This is REALLY not intended as a put-down of you, but sometimes the best advice you can give someone is- "Don't."
What we have here is... failure- to communicate.