Milk Carton
From DT Online
This package is most commonly seen as the everyday milk carton, but is also used for other drinks, and liquids such as refill packs of fabric conditioner. Whilst these cartons tend to be quite difficult to open, they have found favour due to the fact that they tesselate very well.
The packages are usually manufactured from waxed card, although some applications require foil lining to resist bacterial ingress.