Innovations

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Rather than being filled with a rigid substance like Kevlar, this vest is filled with a special type of non-Newtonian fluid that Moratex is simply calling Shear-Thickening Fluid (STF). Think of this stuff as a souped-up, chemically perfected version of oobleck. When a force is applied to it, it causes the liquid’s viscosity to increase. The more force you apply, the more viscous the material becomes — so when it’s struck with a high-velocity projectile (like a bullet), the fluid becomes incredibly hard almost instantaneously.

This Liquid Body Armor Is More Bulletproof Than Kevlar | Digital Trends