reusable quick - release fastener systems include fasteners composed of a neat polymer such as an elastomer or a shape memory polymer . the fasteners may be of any number of geometrical shapes , with each pair of fastening devices having mating geometries that are compatible with one another . the fastening devices provide an easy and nearly silent closure mechanism . the fastener systems can be used to attach one part to another or to act as the closure mechanism for an article comprising the fastener system , such as a pocket , a box , or a container , for example .