Kobe used to be down with Adidas but now that Nike is paying him the big bucks, that is where his loyalty lies.
Reportedly, Nick Young tried to get Kobe to sign a pair of his adidas for him and not only did Kobe not sign it, he went as far as to throw them in the trash. But Young did get the boxscore signed though. So no hard feelings toward him, it was the adidas.
Darius Soriano tweeted what Young told him below.
Nike probably broke Kobe off a bonus for that one.