The X-01 power armor is a set of power armor created shortly before the bombs fell. A variant of the X-01 power armor was still in testing phases with the scientists at Nuka-World in 2077 as a part of a cooperative initiative between the U.S. Military and Nuka-Cola Corporation when the bombs fell.[1] This unique variant is known as the Quantum X-01 power armor, and can be found at Starport Nuka. It was later engineered by remnants of the U.S. military after the Great War. It improves upon older suits by offering superior protective abilities.