The loop 24 projecting be. tween the flanges serves admirably as such a. guide retainer or separator. l The fastener as heretofore described, that is. the side tapes and clasp tape, will usually be secured at the end of the opening in the garment, as by means of Istitching such as 3U (Figs. l and 4) and the fastener as so secured is inthe usual form for securing plackets or other openings.