Originally Posted by
AdamDZ
Dense rubber versus Kevlar? Are you quite sure about that? Because I'm not.
Adam
Find a video of Kevlar vests Vs. a knife, and remember those are several times thicker and still easily stabbed through with a knife tip. They're alright for stopping large things getting through, but thin, narrow, or sharp objects will punch through/cut the fiber fairly easily.
Kevlar is great for some protection without a lot of weight, but dense rubber (see Marathon Plus and tire liners) are where real flat protection lies.