To clarify something here.
Can you get materials to make something capable of protecting you in things like airsoft. Yes, you can.
The problem would be selling it. Its a whole thing to get all your ducks in a row to sell safety gear.
If i make something an sell it, claiming "yes it will protect you from XYZ" but have no legal backing for that. Then you get hurt. Thats one big ass lawsuit on me. Thus my note on many pages of my website stating that my helmets are not safety gear of ANY kind.