A mod dress is what Mad Men‘s Megan Draper wore to serenade her husband with "Zou Bisou Bisou" on his birthday, but it’s also Edie Sedgwick‘s signature striped mini. It can have a little white collar and cuffs, or pay homage to Yves Saint Laurent‘s iconic Modrian design, or be something you bought from Marc Jacobs’ Spring 2013 collection. There’s no one exact shining example of what the mid-century-inspired piece should look like; rather, a couple rough guidelines: the length must be short (no longer than mid-thigh!) and the silhouette structured and bold. Other than that, any color scheme, embellishment or sleeve length goes. We’ve included our 25 favorite takes on the style in the slideshow above—click through to find one that works for you.