Germany has developed a revolutionary smart fabric that remains flexible and comfortable during everyday use — but instantly hardens into a bulletproof shield the moment it’s struck. This cutting-edge material could transform protective clothing for soldiers, police, security teams, and even civilians, making body armor lighter, safer, and far easier to wear. • The fabric uses shear-thickening technology: when hit by a high-speed impact, its molecules lock together in microseconds. • Under norma