Madewell Lightspun Cover-Up Mini Shirtdress Size S Style NJ876 Made of supersoft and lightweight double-layered cotton gauze, this mini version of Madewell's best-selling shirtdress cover-up has an easy open collar with buttons down the front. The perfect throw-on-and-go layer. Relaxed, slightly oversized fit. Cotton. Machine wash. Approximate measurements flat Length 33" Pit to pit 22"