NWT XS Made of supersoft and lightweight double-layered cotton gauze, this mini version of our 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. Do Well: by buying cotton products from Madewell, you're supporting our investment in Better Cotton's mission to help cotton communities survive and thrive while protecting and restoring the environment. This product is sourced through a system of mass balance and therefore may not contain Better Cotton. Machine wash. Import.