Stopper for a container neck

A stopper for a container neck, comprising:

• a skirt having a generally tubular shape and being centered on an axis, the skirt being adapted to surround a neck of a container, and being provided internally with a band adapted to fasten the skirt to the neck in a removable manner by engaging with an external projecting boss of the neck of the container;
• and
• an opening strip having a generally annular shape and including a peripheral portion that is connected to a peripheral portion of the skirt, the strip being movable relative to the skirt between:
• a first position, in which the strip surrounds an external lateral surface of the skirt, by providing an annular space radially between the external lateral surface of the skirt and an inner surface of the strip;
• and
• a second position, in which the inside of the strip is substantially detached from the skirt in order to enable the strip to be manually grasped so that the skirt is removed from the neck,
• wherein the peripheral portion of the skirt and the peripheral portion of the strip are connected by a strand protruding from at least the external lateral surface of the skirt, the strand being designed to be deformed, when the strip is moved between the first and second positions, and
• wherein when the peripheral portion of the skirt and the peripheral portion of the strip are in the first position, corresponding lower ends of the skirt and the strip are aligned with one another.