If anyone knows a little something about The Flash's costume, it's Grant Gustin, who's played the Fastest Man Alive since 2014 in his own CW series, as well as on "Arrow" and "Supergirl." So, after Warner Bros. debuted the first official image of the assembled Justice League, including Ezra Miller as the Scarlet Speedster, it's only natural the 26 year-old actor was asked his opinion about the new threads.

"Oh sick, I haven't seen it," Gustin told Screen Rant at Comic-Con International as he was handed a phone displaying the "Justice League" group shot. "They're completely different. Yeah, I mean I was kind of expecting this. I heard it was going to be kind of like' Injustice.' [...] Yeah, that's sick. Um... yeah, it's sick."

Gustin added that he's glad the movie costume differs from his television version, "Because ours is like a street, vintage feel that I don't think has been done in any other version of the character."

Miller's costume is indeed different, perhaps more closely resembling paintball protective gear than Gustin's Flash outfit. It even has a codpiece, of sorts.

"The Flash" returns Oct. 4 on The CW. "Justice League" arrives in theaters Nov. 17, 2017.