Oakland Athletics 50TH ANNIVERSARY New Era 59Fifty Fitted Hat in Green with Gray Under Brim. Golden State Warriors Color.

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.