If you’re not looking for cotton underwear, we even have a plethora of Nylon, Spandex, Polyester, Lace, and Silk underwear for girls. In a few years, Shein has expanded to various major countries like the US, India, etc. The brand is the go-to choice of teenagers and young adults for stylish clothing in the US. Can't decide on any single color? Go for more than two colors of multicolor. Durable or fancy? Look or feel? What you want in your Shein Multicolor Underwear for girls depends on materials like Cotton, Polyester and Viscose.