A slide fastener comprising: a pair of woven or knitted stringer tapes having a pair of core threads extending in and along their confronting inner longitudinal edges; a pair of rows of die-cast coupling elements mounted on and along the confronting inner longitudinal edges; and each of said stringer tapes including a conductive wire extending along the respective core thread on its side toward the inner longitudinal edge, an edge warp yarn extending along the inner longitudinal edge, and a weft yarn having a succession of turnover portions arranged along the inner longitudinal edge, said conductive wire together with said edge warp yarn being incorporated into each said stringer tapes by said turnovers in such a manner that said conductive wire is partially concealed with said edge warp yarn and said turnover portions.