The present invention relates to a relockable closure (1) for a container, in particular for metal containers for storage of e.g. chemicals/solvents. The relockable closure comprises a non-plastic cover (e.g. a metal cover) (3) covering the opening of the container and a non-metallic skirt (e.g. a plastic skirt) (4) a part of which is foldable between a locking position and a unlocking position. When the foldable part of the skirt is in the locking position, locking means (8) of the skirt engage a curl portion or a projection the container.