Big data can be useful.
Google analysed 6 billion searches made by Americans.
As you can see in this image on Fashion trends seen through Google searches, Google then used that data create "heat maps" for what people have been searching for.
Here's the key fashion take-outs that feature in a New York Times piece on this called Fashion Is Trending, in Google Searches:
- string bikinis are out
- jogger pants are in
- skinny jeans are on the way out
- tulle skirts are in
But perhaps the best place to go to see this is in the Google report itself, Fashion Trends for Spring 2015 as Told by Google Data. That not only points out that jogger pants are hot right now, but that the most searched style is "emoji jogger pants".