A plastic bottle is disclosed, which comprises a cylindrical sidewall
having a predetermined thickness, an upper mouth-forming portion, a neck
extending from this mouth-forming portion, a dome-shaped portion between
the neck and one axial end of the cylindrical sidewall, a lower
bottom-forming base extending from the other axial end of the cylindrical
wall, all about a central axis. The bottle also has at least three
substantially vertical exterior ribs that are substantially uniformly
angularly spaced from each other about the axis on the neck, and these
ribs have maximum cross-sectional radial dimensions along the axis
generally greater than said predetermined thickness. The ribs reinforced
the neck and distribute forces resulting from impact of a localized force
to the mouth-forming portion towards the dome-shaped portion and
cylindrical sidewall.