She asks about the armor. He tries to condense his reply to the best of his abilities.

"You wouldn't be the only one. It's more of a compound material reinforced with an alloy so that the integrity of each piece can withstand damage of the sort." He knocks on it as well, briefly running a finger over the stripe that goes up his arm. "But I can't rely on it completely since I can still be fatally wounded by direct attacks."

Armor is safe. Armor also brings about the more 'informed' side of him as a soldier, and this is fine.