According to concept artist Phil Saunders, director Joss Whedon presented him the challenge of retaining the feel of the Mark V suitcase suit (introduced in "Iron Man 2"), while giving Tony Stark ...

But, at the end of the day, Iron Man is able to rival superhumans and gods because of one thing: his suits - and Iron Man has no shortage. Ever since building his first suit of armor, Tony Stark ...

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.