Thinking it'd be a novel experience at least, she agreed, only to find herself on-stage, in a suit: a deer in headlights ... yes' to an invitation to a nanotech conference in the run-up to the ...

Model 51 piggybacked off Iron Man's other nanotech armors (like the Bleeding Edge suit) as well as other modular designs, ...

Following is a transcript of the video. Narrator: If you look at Iron Man's first suit, the Mark 1, and compare it to the hero's nanotech suit from "Avengers: Endgame," a lot has changed.

Other MCU heroes, most recently Anthony Mackie's Sam Wilson in Captain America: Brave New World, have swapped their physical suits for nanotechnology, which makes suiting up a much smoother process.