X-01 Power Armor

"The X-01 power armor. Lily ordered the X-01 power armor to be built, as ordered, while me and the Preschool Girls were fighting here... in Mambajao."

--Su Ji-Hoon, Mambajao

An X-01 power armor is a set of power armor that appeared from Fallout 4.

Background
The X-01 power armor is a set of power armor created shortly before the bombs fell.