
First, let me say that many aspects of this traditionally are not my jam, I think she looks really good -- very easy-breezy and hip. The top and its flappy straps are silly, but the rest fits really well and there's a germ of something good here. You may think, "It's a jumpsuit, end of story," but let's look at a little more evidence.

You couldn't actually wear a shirt under this the way you can with overalls, but those straps are DEFINITELY at least their cousins, right? They are related. There is overall DNA here.

And then the back view seals it. I suppose you could argue that it's merely a jumpsuit that borrows design elements of overalls, but to me this makes them kin. It's a whole new fashion cuisine. I don't trust it but I applaud her for looking good in it.
