According to Oklahoma City Thunder equipment manager Wilson Taylor:
Westbrook is unbelievably attuned to the tiniest details of his shoes. He has his own personal rack at the practice facility. “Most guys, I can just bring a pair of shoes,” the Thunder’s equipment manager, Wilson Taylor, told me. “Russell wants a certain pair. He knows which are for games, which are for practice. He determines which shoes are coming on a road trip.” When Nike sent Westbrook its latest model, the Jordan 31, he wasn’t happy with the sole flexibility, so he asked the company to build him a special hybrid using the previous model’s sole. Even in that custom shoe, however, the insoles aren’t thick enough for Westbrook, so Taylor replaces each of them by hand.