Miss Oops JAKs are the latest fashion weapon used to fight butt-crack. Miss Oops JAKs, made of stretch lace, are a band worn over pants and under shirts. They appear to be a lace camisole layered underneath a top but in fact, are the latest trend used to cover butt-crack and muffin tops. Miss Oops JAKs--say "no" to cracks. Available in Black & White. One Size.