Celebrate the Arizona Diamondbacks 1998 Inaugural season side patch with this custom-fitted from Exclusive fitted! A black, royal blue undervisor is a serious game changer. Even in a subtle place such as the undervisor, its hard to miss the detailing on the bubbly-colored brim. Paired with the 1998 Inaugural season side logo, this is a Diamondbacks hat for the ages. Bring a little pop into your life with our Royal Blue Bottom fitted. The always classic interlocking Arizona Diamondbacks Inaugural Season treatment with this clean entry from Exclusive Fitted.