This custom Arizona Diamondbacks New Era fitted hat is to match the Pop Art Son of Mars

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Houston Astros 50th Anniversary New Era 59Fifty Fitted Hat (Glow in the Dark Peach Sky Blue Under Brim) 7 This custom Arizona Diamondbacks NewHouston Astros 50th Anniversary New Era 59Fifty Fitted Hat in Peach with a Sky Blue Under Brim. Logo: Glow in the Dark How to make Patch Glow in the Dark: Simply Expose Logo to Sunlight (or bright light) for at least one full minute to activate the green phosphorescent glow. The longer it is exposed, the longer and brighter the afterglow will be.