In March 2016, Johnson partnered with American fitness apparel manufacturer Under Armour to release "Project Rock". The first item in his partnership with Under Armour, a gym bag, sold out in a couple of days. His second item, a black T-shirt sporting his signature "Brahma bull", sold out after being worn at WrestleMania 32. Johnson also released an alarm clock app as part of "Project Rock" that received more than one million downloads in its first week of release. Since then, they have released sneakers, headphones, and other apparel.