I too wore them underneath my plate carrier. A buddy of mine took an AK round right in the chest, went through a PMAG and then hit his plate, knocked him down hard. Big ole bruise under his shirt, too.
NRA Life Member
Ladyfriend: "I need help with the leaves in the yard"
Me: "Controlled burn?"
LadyFriend: "I forgot my Boy Scout turned into an infantry officer."