Nike Breathe Cropped Women's Training Tank Women, Black, Size. stay cool the nike breathe cropped women's training tank is made with breathable fabric in a cropped silhouette to help keep you cool and comfortable during your workout. benefits dri-fit technology helps keep you dry and comfortable lightweight nike breathe fabric helps you stay cool side vent and perforations enhance airflow product details fabric: front: dri-fit 85% polyester 15% cotton. back: dri-fit 88% polyester 12% elastane. machine wash imported.