A molded surface fastener comprises at least one surface fastener portion and a foldable piece portion that extends from the surface fastener portion. At least a part of the foldable piece portion has flexibility. The surface fastener portion has a pair of first barrier portions and a second barrier portion. A cushion body with the molded surface fastener anchored to a prescribed position while a plurality of engaging elements are in an exposed state can be stably manufactured by way of foam molding the cushion body using the molded surface fastener.

This surface fastener has a substrate portion and a plurality of engaging elements, each of the engaging elements being provided with a stem portion standing from the substrate portion and a hook portion extending in the fastener width direction from the stem portion. The engaging element has a narrow width tip end portion provided with at least a hook portion and an enlarged width portion provided with only the stem portion, separated by a reference surface along the fastener length and height directions as a boundary. This makes an undercut hardly formable in the molding of the engaging element, and deficiencies such as deformation and the like of the engaging element can be prevented. Further, the strength of the stem portion can be increased, and a damage which a loop-shaped engaging element and the engaging element receive when the loop-shaped engaging element is attached or pulled out can be reduced.

A fastener device including mating hook-type and a complementary loop-type elements for releasable interengagement with each other includes at least first and second fastener tapes each having at least one surface having a plurality of such elements upstanding therefrom and defining a respective mating surface. When the elements are placed in face-to-face relation engagement of the elements takes place forming a unitary hook and loop structure resisting separation by forces substantially parallel to the interfacial plane of engagement. Auxiliary devices are provided to keep the unitary structure in a compressed state. The auxiliary devices are adapted to perform protective or compression functions. In the protective function the compressed state of the device is obtained as a result of compression of the hook and loop unitary structure. In the compression function additional compression of hook-type and loop-type elements by a special device is generated and said compression state is maintained.