From J. Crew website: A base layer inspired by our best-selling lady jackets. - With polished gold buttons and a classic contrast trim, this take has all the lady jacket details you know and love, without the weight of the traditional silhouette. Plus, it's crafted from our vintage rib fabric, a lightweight cotton blend inspired by easy styles of the '70s, with a very soft feel and just a hint of stretch. 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 via a system of mass balance and therefore may not contain Better Cotton. 57% cotton/38% Modal rayon/5% elastane. Machine wash. Imported. Item BY421.