So you're looking for a Black Irish Black Cap? You've stumbled upon the right place. We specialize in Black Irish Black Caps and many more funny, vintage and retro t-shirts. Black Irish Black Cap. Featuring funny t-shirts, movie inspired vintage, new and retro-style gear. We also carry offensive tees, flirt shirts, geek gear and more. Sweetness. All orders come with a 30 day money-back guarantee and most ship within 24 hours.