An article carrier and a blank for an article carrier for holding articles with tapered sides, for example connected plastic cups, comprising a top wall, opposed side walls and a base wall hingedly connected together to form a tubular structure. An article retention structure is hingedly connected to one of the side walls and the base panel. The article retention structure is formed by a plurality of panels including a side end flap so constructed and arranged to taper inwardly towards the base wall to substantially conform to the shape of an adjacent article.