A tamper evident closure to be mounted on a neck of a container comprising a neck that terminates in a mouth , for closing the mouth when the closure is mounted on the neck , said closure extending along a longitudinal direction (X-X) and comprising: - a cap having a plug configured to engage removably inside the neck of the container to close and open the mouth of the container , - a skirt configured to be arranged around the upper end portion of the neck , - attaching members for attaching longitudinally and rotationally the skirt to the neck , - a locking member , wherein: - said cap is configured to be grasped for opening and closing the container and is movable relative to said skirt from a first position, corresponding to the position prior to first opening, to a second position, - said cap comprises a top wall and a first tubular sleeve extending longitudinally between said top wall and a first lower edge , - said skirt comprises a second tubular sleeve extending longitudinally between a second lower edge and a second upper edge , - said first tubular sleeve has a first inner annular seat formed proximate to said first lower edge , - said second tubular sleeve has a second inner annular seat formed proximate to said second upper edge , - said locking member comprises a first portion and a second portion , - said second portion is arranged within said second inner annular seat and is constrained at least longitudinally to said second tubular sleeve , - before first opening, said first lower edge is adjacent to said second upper edge and said first portion is arranged within said first annular seat longitudinally above said first lower edge , - upon first opening, as the cap moves longitudinally away from the skirt and the neck , the first lower edge passes over the first portion longitudinally so that, upon reclosing the closure , the first portion positions in an obstructive manner between the first lower edge and the second upper edge and the first lower edge abuts against the first portion to prevent the cap to move back to the first position. - a cap having a plug configured to engage removably inside the neck of the container to close and open the mouth of the container , - a skirt configured to be arranged around the upper end portion of the neck , - attaching members for attaching longitudinally and rotationally the skirt to the neck , - a locking member , - said cap is configured to be grasped for opening and closing the container and is movable relative to said skirt from a first position, corresponding to the position prior to first opening, to a second position, - said cap comprises a top wall and a first tubular sleeve extending longitudinally between said top wall and a first lower edge , - said skirt comprises a second tubular sleeve extending longitudinally between a second lower edge and a second upper edge , - said first tubular sleeve has a first inner annular seat formed proximate to said first lower edge , - said second tubular sleeve has a second inner annular seat formed proximate to said second upper edge , - said locking member comprises a first portion and a second portion , - said second portion is arranged within said second inner annular seat and is constrained at least longitudinally to said second tubular sleeve , - before first opening, said first lower edge is adjacent to said second upper edge and said first portion is arranged within said first annular seat longitudinally above said first lower edge , - upon first opening, as the cap moves longitudinally away from the skirt and the neck , the first lower edge passes over the first portion longitudinally so that, upon reclosing the closure , the first portion positions in an obstructive manner between the first lower edge and the second upper edge and the first lower edge abuts against the first portion to prevent the cap to move back to the first position. <EOS>