In an interview with Mario Lopez from Extra, Ben Affleck was asked to talk about his Batman suit that he will be donning in "Justice League."
Affleck talked briefly about the costume and said that he will be donning two suits in "Justice League." One he said that we have already seen before and the other is an augmented version that he will use due to the nature of a mission he cannot disclose. He adds that they did a good job in adding elements to it to tech it out. The suit Affleck refers to is The Tactical Batsuit also revealed by director Zack Snyder last month via Twitter.
The suit is not as bulky as compared to the armored suit in "Batman Vs. Superman." Costume designer Michael Wilkinson in an article by Sean O'Connell in Cinemablend, that though the Tactical Batsuit has a lot more armor that offers more protection than the classic armor, it is layered in such a way that it will still look streamlined and sleek. This in turn will allow Batman to "step up his game." The said suit will make an appearance towards the end of the film when Batman realizes he has to fight villains with real superpowers.
Wilkinson said that the new suit would feature a new cowl and goggles with tech details. It will also have a new carbon fiber weave tech cape. He also adds that the goggles will serve two purposes - one is for aesthetics to catch the light to draw white flashes as illustrated by the classic image in the comic books. He further adds that Batman will need the goggles when he pilots a new vehicle that will be featured in the film.
"Justice League" comes to theaters on Nov. 17, 2017, featuring an all-star cast that includes Affleck as Bruce Wayne (Batman), Henry Cavill as Clark Kent (Superman), Gal Gadot as Diana Prince (Wonder Woman), Ezra Miller as Barry Allen (The Flash), Jason Momoa as Arthur Curry (Aquaman), Ray Fisher as Victor Stone (Cyborg), Amy Adams as Lois Lane, Jesse Eisenberg as Lex Luthor, Jeremy Irons as Alfred Pennyworth, J. K. Simmons as Commissioner James Gordon, and Amber Heard as Mera.