If you’re not looking for cotton underwear, we even have a plethora of Nylon, Spandex, Polyester, Lace, and Silk underwear for girls. Shein offers a diverse range of designer clothes at competitive prices. The brand’s most-loved products in the clothing category are women’s dresses, t-shirts, shirts, shorts, etc. Durable or fancy? Look or feel? What you want in your Shein Underwear for Girls depends on materials like Cotton, Polyester and Viscose.