Abstract: There is disclosed a blank for forming a wrap-around carrier sleeve comprising a plurality of panels connected end to end, including first and second end panels at opposite ends of the blank configured to overlap and cooperate to form a bottom of the sleeve. The first end panel includes at least one retainer flap struck from the panel. The second end panel includes at least one male supporting tab connected to the second panel. Each male supporting tab has a notch formed along one side, the notch being sufficiently offset from the fold line in the neck so that, when the second panel overlaps the first panel and the male supporting tab extends through an opening formed by the retainer flap in the first panel, the notch in the male supporting tab lockingly engages a raised edge of the retainer flap.