Nike Blast Dri-Blend Racerback Tank - Women'sWorkout in style with the Nike Blast DB Racerback Tank. Made with Dri-Blend fabric, this training tank has a soft, smooth feel and helps manage moisture to keep you cool and sweat free. Scoop neck design and wide armholes promise a comfortable fit. Racerback for full range of motion. 75% polyester/13% cotton/12% rayon. Imported.