Abstract: A clip closure for bags, more particularly a band consists of such clip closures which can be processed in a bag-closing machine. The clip closure takes the form of a flat, elongate strip 1 having reinforced longitudinal edges. The strip 1, together with its reinforced longitudinal edges 2, 3, is made entirely of a flexible plastics. To reinforce the longitudinal edges 2, 3 the strip 1 is thicker at the longitudinal edges than in the zone therebetween. At two places spaced out from one another and from its ends the strip is weakened over its entire width to form required bending folds 12, 13, the reinforced longitudinal edges 2, 3 having cutaway portions 6-9 at said places.