I just bought a 4.2 bottle of Rive Gauche. Its incredibly lightweight for being 4.2 However it is aluminum and with no glass or heavier metals. In spite of this, it is suspiciously light and feels like there is less liquid than there should be for 4.2 oz.
It was sealed in box as far as I know new from the store.
It was sealed in box as far as I know new from the store.












