From our sports illustrated x forever 21 collection, this knit pair of bikini bottoms features a hipster silhouette, belted waist, and high - polish "si" hardware. . Sports illustrated is a trademark of abg - si llc. ©abg - si llc. Sportsillustrated. Com. Shell: 82% polyester, 18% spandex. Other contents: 92% polyester, 8% spandex. Hand wash cold. Model is 5'5" and wearing a small. Women's sports illustrated hipster bikini bottoms in fiesta small