Lululemon Swift Ventilated Racerback Running Tank Top in black, size 10. Running on a hot day just got breezier. Like a classic pair of running shorts, this lightweight tank has overlapping panels to keep you moving without restriction. lightweight, swift fabric. Sweat-wicking. Quick-drying. Perforated panel for ventilation. Reflective details help keep you on the radar. (Stock image for fit illustration only). Tag removed for comfort - excellent condition!