A cap for a bottle with a threaded portion for securing the cap to the bottle to close an opening thereof, the cap comprising: A cap housing which includes: a cap portion having a closed end and an open end, said cap portion comprising a top structure at the closed end and a sidewall extending from the top structure towards the open end, said sidewall having a threaded portion on an inside surface for engagement with the threaded portion of the bottle, a band portion connected to the cap portion via an intermediate portion at the open end of the cap portion, wherein the intermediate portion comprises a plurality of elongated openings arranged circumferentially about the intermediate portion so as to define at least two connecting portions interconnecting the cap portion with the band portion, wherein each of the at least two connecting portions comprises a respective first end and a respective second end, and is connected to the cap portion at the first end and to the band portion at the second end, wherein the band portion comprises at least one holding structure at an outward facing surface thereof, wherein the plurality of elongated openings is structured and arranged to allow the cap portion to be unscrewed and removed from the opening of the bottle while being connected to the band portion via the at least two connecting portions and to be positioned in an open position in which an edge structure which is formed at the open end of the cap portion is forced towards the threaded portion of the bottle and engages with the at least one holding structure, characterized in that the cap has a diameter that is smaller than a distance between the holding structure and the top structure when the cap portion is screwed to the bottle. a cap portion having a closed end and an open end, said cap portion comprising a top structure at the closed end and a sidewall extending from the top structure towards the open end, said sidewall having a threaded portion on an inside surface for engagement with the threaded portion of the bottle, a band portion connected to the cap portion via an intermediate portion at the open end of the cap portion, wherein the intermediate portion comprises a plurality of elongated openings arranged circumferentially about the intermediate portion so as to define at least two connecting portions interconnecting the cap portion with the band portion, wherein each of the at least two connecting portions comprises a respective first end and a respective second end, and is connected to the cap portion at the first end and to the band portion at the second end, wherein the band portion comprises at least one holding structure at an outward facing surface thereof, wherein the plurality of elongated openings is structured and arranged to allow the cap portion to be unscrewed and removed from the opening of the bottle while being connected to the band portion via the at least two connecting portions and to be positioned in an open position in which an edge structure which is formed at the open end of the cap portion is forced towards the threaded portion of the bottle and engages with the at least one holding structure, characterized in that the cap has a diameter that is smaller than a distance between the holding structure and the top structure when the cap portion is screwed to the bottle.