Gray will become a popular color in Real Madrid's fanbase with the 2015-2016 kits. Apparently, Adidas have decided to keep it plain and simple, no matter whether that's good news or not.
This first kit looks good. Real Madrid should always try to keep a low profile with their home kit and make white the absolute priority. With orange and pink details on recent years, it hasn't been that way.
The second kit is a bit more questionable. It's true that Adidas always like to make experiments with Real Madrid's away kit, but this gray one is just not something that will catch people's attention in comparison the the black -- and also the pink -- one Real Madrid have been wearing this season.
Footyheadlines report that Real's third kit will be navy blue. As always, Adidas will unveil it this August.