When it comes to flattering details, a little smocking goes a long way. Size XS fits like S. - This pretty shirt features smocking along the back and a face-framing square neckline, so it's fitted and extra-flattering. By buying cotton products from J.Crew, 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. 97% cotton/3% elastane body; 94% polyester/6% elastane lining. Machine wash. Import. Item BR166.