A flame-resistant closure includes at least one closing part having at least one two-dimensional backing fabric (14) of warp threads (10) and weft threads (12) and having functional threads (16) on the right side of the backing fabric (14). The functional threads at least partially extend through the backing fabric (14), and form the closing elements (18). The backing fabric (14) is of the non-flame-resistant type. At least some sections of the backing fabric reverse side include a substrate layer (32) with a substantially inflammable medium and/or with an active extinguishing medium. This closure meets even high demands on inflammability.