New York Yankees 27x World Series Champions New Era 59Fifty Fitted Hat (Glow in the Dark Navy Green Under Brim) 70617753 San Francisco Warriors New Era

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New York Yankees 27x World Series Champions New Era 59Fifty Fitted Hat (Glow in the Dark Navy Green Under Brim) 70617753 San Francisco Warriors New EraNew York Yankees 27x World Series Champions New Era 59Fifty Fitted Hat in Navy & Green Under Brim. Logo: Glow in the Dark 100% Polyester 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.