NWT Old Navy PowerSoft Racerback Crop Tank Top Product Details Featuring PowerSoft. Light compression meets a peachy-smooth, sweat-wicking fabric. scoop neck wide stabilizing straps racerback shelf bra removable cups go-dry wicks moisture #723215 Materials & Care 77% polyester 23% spandex black tie-dye: 81% polyester, 19% spandex machine wash according to the care instruction label imported Fit & Sizing fitted hits at waist models are approx. 5'9" and wear sizes s (4), l (12) and xl (18)