The Power Is From The "U". Part of the A-ZX series of shoes - a collection of 26 models, each symbolizing one letter of the alphabet. Each model is a hybrid that refers to the silhouette of the ZX and enriches it with an element that connects to a given letter. The letter "U" comes in on this model. Orange, green and white refer to the colors of the Miami Hurricanes - the team that has the two longest winning streaks in the history of the first division of the American Intercollegiate Sports League (NCAA). The silhouette of the ZX 5000 is iconic and has decades of heritage behind it. Whether you are a fan of the Miami Hurricanes or the ZX model, the U-ZX shoes are a collector's item.