A closure comprising a spout and an overcap adapted to be sealed to a container neck by means of a double-sided foil is provided. The overcap has a depending valve which sealingly engages with the spout to hold these components together prior to assembly to the container. The spout has a flange covered by the foil and adapted to seat on a rim of the container neck, and an annular wall that is received within the container neck such that the flange is the only part of the spout above the rim. A ridge surrounds the annular wall of the spout to retain an annulus of foil. A method of assembling a closure is also provided.
