Harry Potter distressed sleeveless tank junior's shirt with a "I Solemnly Swear That I Am Up To No Good" script graphic design. Of course, this is what one must repeat in order to activate the marauder's map that allows them to explore Hogwarts. Made of 100% distressed cotton. This is styled to be a distressed shirt. The cotton fabric has been faded and the sleeves are designed to appear as if they were cut rather than stitched.