Grommet

A disc or shaped fastener sewn to one side of an opening and passed through a buttonhole or loop on the other side to close a garment.

A reinforced slit or bound opening in fabric sized to admit a button, finished by machine zigzag stitching, a bound technique, or hand stitching.

A decorative fastening of intricately knotted cord or braid, with a button-like knot and a loop, traditionally used on Chinese-style and Asian-inspired garments.

A zip whose teeth are concealed behind a folded tape, sewn with a special foot so only a thin seam-like line shows on the finished garment.

A zip in which the two sides detach completely at the bottom, used on jackets and cardigans that open fully rather than a fixed-bottom garment closure.