Sweet. Liquid Armour.

I bet the research assistant who got to repeatedly stab the liquid armour really got to let out alot of pent up rage. "Take that. STAB. This is for STAB calling me a geek STAB and stuffing me STAB in my locker STAB. I hate you Erick Johnson STAB. STAB STAB STAB.

The liquid - called shear thickening fluid is actually a mixture of hard nanoparticles and nonevaporating liquid. It flows normally under low-energy conditions, but when agitated or hit with an impact it stiffens and behaves like a solid. This temporary stiffening occurs less than a millisecond after impact, and is caused by the nanoparticles forming tiny clusters inside the fluid. "The particles jam up forming a log jam structure that prevents things from penetrating through them," Wagner explains.

A suit of this stuff and I am well on my way to being a fully fledged superhero.

http://www.sciencentral.com/articles/view.php3?type=article&article_id=218392807