Closure assembly comprising an article and a cap, said cap including an integrated tamper-evident ring member, wherein: - the article forms a tubular neck around a product passage in said article, said neck forming a mouth at a top end of said product passage, - the cap is secured on or is adapted to be secured on said neck of the article, the cap being adapted to be manually removed from the neck of the article by a user to open the product passage, wherein the cap has a closed position and an open position, wherein in the closed position the cap is positioned on the neck and thereby seals the product passage, wherein in the open position the cap is removed from the neck, thereby leaving the product passage open, wherein the cap comprises a top wall structure and a downward depending skirt having an interior side, exterior side, and a lower edge remote from the top wall structure, wherein the tamper-evident ring member is integrally formed to the lower edge of the skirt of the cap, said tamper-evident ring member comprising a base portion, e.g. an annular base portion, which base portion is connected via one or more breakable bridges to the skirt, wherein the base portion is configured to remain connected to the article upon removal of the cap from the neck of the article by the user, wherein the closure assembly comprises: - at least one upwardly directed first cam portion defining a cam surface, which first cam portion is integrally formed on the base portion of the tamper-evident ring member, and - at least one downwardly directed second cam portion defining a cam follower surface adapted to interact with the cam surface of the first cam portion, which second cam portion is integrally formed on the lower edge of the skirt, wherein - upon first time opening of the closure assembly by rotation of the cap relative to the article about the main axis- the first and second cam portions interact in order to cause axial lifting of the cap relative to the neck, characterised in that the cap further includes an integrated strap, wherein the cap including the integrated tamper-evident ring member and the integrated strap is made, e.g. moulded, as one piece of a plastic material and distinct from the article, wherein the strap is integral at a first end thereof to the upwardly directed first cam portion of the tamper-evident ring member and at a second end thereof integral to another portion of the cap, wherein the strap is adapted to remain connected to both the upwardly directed first cam portion of the tamper-evident ring member and said other portion of the cap upon removal of the cap from the neck of the article by the user. - the article forms a tubular neck around a product passage in said article, said neck forming a mouth at a top end of said product passage, - the cap is secured on or is adapted to be secured on said neck of the article, the cap being adapted to be manually removed from the neck of the article by a user to open the product passage, wherein the cap has a closed position and an open position, wherein in the closed position the cap is positioned on the neck and thereby seals the product passage, wherein in the open position the cap is removed from the neck, thereby leaving the product passage open, wherein the cap comprises a top wall structure and a downward depending skirt having an interior side, exterior side, and a lower edge remote from the top wall structure, wherein the tamper-evident ring member is integrally formed to the lower edge of the skirt of the cap, said tamper-evident ring member comprising a base portion, e.g. an annular base portion, which base portion is connected via one or more breakable bridges to the skirt, wherein the base portion is configured to remain connected to the article upon removal of the cap from the neck of the article by the user, wherein the closure assembly comprises: - at least one upwardly directed first cam portion defining a cam surface, which first cam portion is integrally formed on the base portion of the tamper-evident ring member, and - at least one downwardly directed second cam portion defining a cam follower surface adapted to interact with the cam surface of the first cam portion, which second cam portion is integrally formed on the lower edge of the skirt, - at least one upwardly directed first cam portion defining a cam surface, which first cam portion is integrally formed on the base portion of the tamper-evident ring member, and - at least one downwardly directed second cam portion defining a cam follower surface adapted to interact with the cam surface of the first cam portion, which second cam portion is integrally formed on the lower edge of the skirt, wherein - upon first time opening of the closure assembly by rotation of the cap relative to the article about the main axis- the first and second cam portions interact in order to cause axial lifting of the cap relative to the neck, characterised in that the cap further includes an integrated strap, wherein the cap including the integrated tamper-evident ring member and the integrated strap is made, e.g. moulded, as one piece of a plastic material and distinct from the article, wherein the strap is integral at a first end thereof to the upwardly directed first cam portion of the tamper-evident ring member and at a second end thereof integral to another portion of the cap, wherein the strap is adapted to remain connected to both the upwardly directed first cam portion of the tamper-evident ring member and said other portion of the cap upon removal of the cap from the neck of the article by the user.