Steve Rogers did, in fact, realize that something was off when he saw the outline of the woman’s odd bra (a push-up bra, he would later learn), but being an officer and a gentleman, he said that it was the game that gave the future away.
No, see, this scene is just amazing. The costume department deserves so many kudos for this, it’s unreal, especially given the fact that they pulled off Peggy pretty much flawlessly.
1) Her hair is completely wrong for the 40’s. No professional/working woman would have her hair loose like that. Since they’re trying to pass this off as a military hospital, Steve would know that she would at least have her hair carefully pulled back, if maybe not in the elaborate coiffures that would have been popular.
2) Her tie? Too wide, too long. That’s a man’s tie, not a woman’s. They did, however, get the knot correct as far as I can see – that looks like a Windsor.
3) That. Bra. There is so much clashing between that bra and what Steve would expect (remember, he worked with a bunch of women for a long time) that it has to be intentional. She’s wearing a foam cup, which would have been unheard of back then. It’s also an exceptionally old or ill-fitting bra – why else can you see the tops of the cups? No woman would have been caught dead with misbehaving lingerie like that back then, and the soft satin cups of 40’s lingerie made it nearly impossible anyway. Her breasts are also sitting at a much lower angle than would be acceptable in the 40’s.
Look at his eyes. He knows by the time he gets to her hair that something is very, very wrong.
i’ve reblogged this before but this one has further breakdown of exactly why, and i love it. (also hell yes, kudos to the costume department for this; it’s wrong, but it’s so clearly DELIBERATELY wrong considering how well they nailed it during the 40s sequences).
The wait-for-Steve-to-wake-up committee could have used this very handy article how to recreate a 1940s bra silhouette.
And another giveaway is that her hair is too long for regulation (and I could be wrong, but I think her shirt would be better-fitted).