XX: chromosomes but so much more

XX ... the chromosomes of a female human (usually). But that's not all! Also a British band, the Roman Numeral 20,  and (almost) Amsterdam's city logo! Regardless of the meaning you assign, you can get your XX in our unique hand-drawn layout, in bright or neutral colors, on shirts, mugs, bags, keychains, whatever you want, for yourself or as a gift. Check out the assortment on our zazzle store, too.