'It's indeed the AGSS sol-gel, originally designed to help astronauts resist acceleration. This is a synthetically produced non-Newtonian fluid that rapidly thickens upon sharp shearing forces, increasing its resistance to bullet impacts or stabs, basically a bulletproof vest material.'
'You can try punching it to feel the effect—it can effectively dampen the impact to protect bodily tissues… Holy shit, it got wrecked with just one punch! Cough cough, anyway, once it loses its functionality, the sol-gel will lose its properties and flow out. That's when you insert this glass tube into the protective suit's circular port for replenishment. These are old-gen equipment from the Solar System wars, kudos to the Legion for still being able to modify them. They're quite practical.'
