Slotted Glasses Black Light Responsive T-Shirt. This is defiantly a super B.A. must have t-shirt for the clubs, bars and parties. Slotted Glasses are one of the hottest club trends in years and now you too can add an uber 80's style with this florescent colored, blacklight responsive Slotted Glasses T-Shirt for girls. This shirt looks great, day or night black light on or off, but when the black light is on the party has just begun! Each deluxe neon colored, black light responsive design is printed to order on your choice of shirt type, size and color. All shirts are 100% deluxe, super comfy cotton.