Oakland Athletics 1989 Battle of the Bay World Series New Era 59Fifty Fitted Hat (Glow in the Dark Black Gray Under Brim) 70613252 Arizona Diamondbacks 2001 World Series

Arizona Diamondbacks 2001 World Series New Era 59Fifty Fitted Hat Teal & Floral Pattern Under Brim

Black & Red Under Brim

Back by popular demands here is another one made specifically by us for the people

HALFTIME x Champion Reverse Weave Hoodie in Gray

So a hat combining both just makes sense

Oakland Athletics 1989 Battle of the Bay World Series New Era 59Fifty Fitted Hat (Glow in the Dark Black Gray Under Brim) 70613252 Arizona Diamondbacks 2001 World SeriesOakland Athletics 1989 Battle of the Bay World Series New Era 59Fifty Fitted Hat in Black with Gray 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.