Case with a foldable lid

A case, in particular for a cosmetic product, comprising:

• a base having a recessed region forming a reservoir,
• a lid,
• a tongue having two opposite ends, one being connected to the base and the other being connected to the lid,
• first retaining means having a first portion arranged on the base and a second portion arranged on the lid, which portions are to cooperate with one another to keep the lid, relative to the base, in a closed position in which the reservoir is substantially isolated from the outside,
• second retaining means having a first portion arranged on the base and a second portion arranged on the lid, which portions are to cooperate with one another to keep the lid, relative to the base, in an open position permitting free access to the reservoir, the tongue being of a length such that, while remaining connected to the base and to the lid, it enables the lid to be moved between the closed position and the open position,
• the base has an upper portion and a lower portion, the upper portion incorporating the first portion of the first retaining means and the lower portion incorporating the first portion of the second retaining means,
• the lid has an upper portion and a lower portion, the lower portion incorporating the second portion of the first retaining means and the upper portion incorporating the second portion of the second retaining means,
• the open and closed positions of the lid are parallel with one another.