A fastening system has a first fastening member and a second fastening member. The first member has a retaining element and a substrate element. The retaining element includes a proximal edge and a distal edge and is attached to the substrate element along a line of attachment. The second fastening member has an inboard portion, an outboard portion, and an elongated opening disposed between the inboard and outboard portions. The elongated opening is configured such that at least part of the retaining element is capable of passing through the elongated opening when the retaining element is in a first orientation and when the retaining element is in a second orientation.