Women's Nike Breathe Running Tank ULTIMATE LIGHTWEIGHT FREEDOM. The Women's Nike Breathe Running Tank keeps you dry, cool and comfortable with super lightweight fabric. A T-back design and drop-tail hem help you hit your stride with flattering coverage. Nike Breathe fabric helps you stay dry and cool. T-back design delivers excellent ventilation. Side slits allow mobility. Relaxed fit with a drop-tail hem delivers comfortable coverage. Scoop neck provides a nonrestrictive fit.