An unconventional maid costume that utilizes a track suit or a track jacket as the base. May be simply a longer jacket worn like a dress, a skirt and jacket combo, or a track pants + jacket set, but the costume needs some maid-like elements, like a maid apron or a maid headdress. Note that "jersey" in Japanese refers to a track suit and not the "jersey" in English, do not tag these as jersey.