Avengers: Endgame New Trailer Breakdown: 16 Things You Need To See
3. The Quantum Realm Suits
After a number of merchandise leaks, Marvel have finally and officially revealed the new white suits the Avengers will be wearing in Endgame, making them look like more of a proper team than ever before.
It's not just for brand synergy they're wearing these suits though, but because they're going to tie directly into the main plot of the movie. It's a badly kept secret that Avengers: Endgame is going to be a time travel movie, with the widely accepted theory that they use the Quantum Realm to go back into the past.
The two characters not shown in the suits here are Bruce Banner and Captain Marvel. The latter is because they're saving her 'reveal' for the trailer's stinger, and the former further hints at Professor Hulk, or that they need someone to stay behind and control the mission, much like Hank, Janet, and Hope were for Scott before they got dusted.
These suits, then, are comprised of advanced technology that will allow them to go into the Quantum Realm without suffering from any of its highly-dangerous effects. It's similar to the suits we saw in Ant-Man and the Wasp, so will be designed by Scott Lang, who'll be bringing the Quantum tech to Avengers HQ, where he'll have geniuses like Bruce and Tony Stark to help him formulate the plan to journey into the Quantum Realm.