Citizens of Humanitys Sheena Henley top has buttons that allow you to create a mock neck. Made from black ribbed-knit with plenty of cotton and soft Lyocell, it has a slim fit and subtly cropped hem.brbrLower-Impact Materials. This product is made using at least 50% lower-impact materials or ingredients. Find out more about our NET SUSTAIN criteria a href=https://www.net-a-porter.com/en-gb/campaigns/net-sustainhere./a