Uhhh, I don't know if you realize all that's involved with these. #1, the materials are built up using many many layers. #2, the equipment that is used to get these layers together cost considerable money. #3, you're gonna be betting your life on it-are you willing to do that? Comfort and weight-wise, the commercial ones are going to be better than creating your own, as they've got the resources and experience. I'm not trying to rain on your parade, as new ideas in gear is always refreshing and enterprising, but this is one area I would leave to the current manufacturers. If you're talking about tac-vests or LBV's, that's different, or if you're talking about carriers to put panels in, but to create your own ballistic panels themselves is going to be more than you think.