Abstract: An improved slip to be worn as an undergarment beneath a dress or skirt of the type having a side, front or back slit in the lower edge of a dress or skirt. The slip can either be a half-slip or full slip. It is provided with an opening or recess in a panel of the slip, such as at the rear or front of the slip. The opening is of sufficient size to be larger than the slit in the dress or skirt with which the slip is used. The panel with the opening is opposite to a full panel, such as at the front or rear of the slip so that the full panel alone serves to block the light tending to pass through the dress or skirt and slip. With this one full panel, there is no need to have a conventional slip encompassing the legs of the wearer.