The Caitlyn Cotton Smock Shirt Dress in Optical White is Crafted from GOTS certified organic cotton poplin a natural fabrication. This dress is a shirt styled smock dress. Featuring a concealed button tab, ruffle detailing, in-seam side pockets and a detachable slip lining with adjustable sliders. Oversized, smock-styled fitting. If you are in-between sizes, Joslin highly recommends to purchase the smaller size.