Philadelphia Phillies 2008 World Series 59Fifty New Era Fitted Hats (Glow in the Dark Logo Blue Sky Blue Under Brim) Birmingham Barons SF 49ers color way

SF 49ers color way

It does NOT glow in the dark continuously or without charging

Chicago White Sox COMISKEY PARK New Era 59Fifty Fitted Hat in team color Black and Grey under brim

This Rockies Cap is jet black algae bloom with Gray Under Brim

Los Angeles Dodgers 1959 All-Star Game New Era 59Fifty Fitted Hat in Brown with Mint Under Brim

Philadelphia Phillies 2008 World Series 59Fifty New Era Fitted Hats (Glow in the Dark Logo Blue Sky Blue Under Brim) Birmingham Barons SF 49ers color wayPhiladelphia Phillies 2008 World Series 59Fifty New Era Fitted Hats in Blue & Sky Blue Under Brim. Logo: Glow in the Dark How to make Logo 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.