A blank for forming an article carrier, the blank comprising a main panel comprising a paperboard substrate, wherein the main panel comprises at least two article retention structures, each having an aperture defined in the main panel, the blank further comprising one or more tabs formed about a periphery of each of the apertures in the main panel, the one or more tabs being connected to the main panel such that the tabs yield out of the plane of the main panel when an article is received in the aperture so as to bear against the article, wherein the main panel is defined in part by a pair of opposing side edges each of which includes a curvilinear portion such that the main panel has a first length (W1) extending between the curvilinear portions, the W1 being less than a maximum length (W) of the main panel, and W1 being less than Z×D1, wherein D1 is a maximum diameter of one or more articles and Z is an integer number of columns of an array in which the at least two article retention structures are arranged.