comfortable, contoured and stylish. the nike stack women's tank top is made with soft cotton for comfort and a racerback for enhanced range of motion. a slim fit and a screen print offer a flattering, athletic look.. benefits. rib scoop neck and armholes for durability. racerback for enhanced range of motion. screen print at front for style. slim fit for a close, comfortable feel. product details. fabric: 100% cotton. machine wash.