Forever 21+ - a knit muscle tee featuring a round neckline, sleeveless cut, and elasticized hem. . Matching bottoms available. Complete the look with 00469638. . 76% polyester, 19% lyocell rayon, 5% spandex. Machine wash cold. Model is 5'8" and wearing a size 1x. Women's muscle t - shirt in black, 0x