Slide closure with stabilizing fins and associated garment

A fabric article comprising:

• a first front side formed of fabric;
• a second front side formed of fabric;
• and
• a slidable closure comprising:
• a first fastener tape defining a first fastener tape bottom edge and a first fastener tape longitudinal edge, the first fastener tape being sewn to the first front side,
• a first row of fastener elements extending along the first fastener tape longitudinal edge,
• a retainer box positioned near the first fastener tape bottom edge and adjacent a bottom fastener element of the first row of fastener elements,
• a second fastener tape defining a second fastener tape bottom edge and a second fastener tape longitudinal edge, the second fastener tape being sewn to the second side of fabric,
• a second row of fastener elements extending along the second fastener tape longitudinal edge and being configured to selectively interlock with the first row of fastener elements,
• an insertion pin positioned near the second fastener tape bottom edge and adjacent a bottom of the second row of fastener elements, and
• a stabilizing fin being more rigid than the first fastener tape and being substantially planar, wherein the stabilizing fin is coupled with the first fastener tape to extend upwardly from the first fastener tape bottom edge, the stabilizing fin defines a first edge closest to the first row of fastener elements, and the first edge is spaced from the first row of fastener elements and from the retainer box.