"So Iron Man that can run really fast"

The only thing that separates these guys is their suits and now it's are ruined!!! :(

/s

In all fairness though if they can pull off a good looking tech costume that looks comfortable to move in and captures the character's spirit I don't see what the problem is. Micheal Wilkinson hasn't let us down just yet. So much thought went into the Trinity's costumes. I doubt they'll half ass Flash's costume, I'm sure they've taken so many materials into consideration.

"Like always, didn't say or imply that"

You literally said it would be a fast running Iron man. That's besides the point. Why would you assume he looks like that Flash?! All he said was "like Injustice:Gods among us" so I assumed it would look a tiny bit like his default version. So much can be lost in translation. I remember Kevin Smith saying he saw the BvS Batsuit and it was "very Jim Lee" which in my opinion... it really isn't.

I like the idea of it not being all leather. A tech-based suit could explain why he can run so fast and still manage to have a squeaky clean suit that is free from wear.

A tech-based suit could withstand the force of his immense speed a lot better, just as long as it is not fully metal. Make it leather for comfort, but allow the mechanics and overall technology to tap into the speedforce to help protect his body and also the suit.

Bear in mind that at the end of the day, The Flash is still human, and the DC Extended Universe is being developed in a realistic setting. So it means, it would need to explain how the hell the flash can run at super-speed without being ripped apart. The Flash does not have super strength, his body cannot withstand certain pressures in the way Superman can.

If he gets shot, that bullet will pierce through his body like any other human.

I agree, especially now with tech and fabrics being just as capable as low grade armor.

I don't want to see Flash in some kind of metal suit.