Not a new toys, non-woven like Spectrum had been use over 10 years + already, 36+ layers near stop every pistol (don't use AP wor and somethings like MP-7 wor), for rifle, u need make it into hard panel, so no too much special
traditional one use a themo film to glue them together, fiber should same weight, you can make the film a little lighter, remember, they use multi-layers, so lighter each layer, result may be good.
but nowadays most professional only use hard plates. That's why they get somethings call 'stand alone'
"“unidirectional fabric has no crimp points like woven fabric. So, typically unidirectional [fabric] will outperform a woven [fabric] stopping bullets.”