Champion Seamless Active Tank BlackWHITE FOX ACTIVE In My Zone. The Champion Seamless Active Tank in Black features thin elastic shoulder straps, a scoop neckline and racerback, a ribbed waist hem, and highstretch seamless fabrication. It includes a builtin bra with removable padding, is unlined, and has printed WFA initials at the center back. Style with the matching Mode Flare Leggings or Powerhouse Capri.