There are trends during fashion week that are loud. They come down the runway, catch your attention, and every show thereafter features that trend. Other trends are quiet; they tiptoe and sneak in — only to pop up in your head later, after the rush of NYFW has subsided and you've caught your breath. There’s no real hierarchy between the trends that are obvious and the ones that are more subtle. The obvious ones you might spot in fast-fashion stores soon, while the subtle ones might stay dormant for a few months until they break out in a big way.