PIKPÄK is a packaging for drinks which was specially developed for use at festivals. It is designed as a tetrapack rucksack, making it easy for visitors to carry their drinks on their backs. This offers several advantages. The hands, for example, remain free and nothing can spill when walking or dancing. The packaging also reduces the chance of being drugged, since there is no need to put the drink down. The environmentally friendly rucksack can be locked and re-filled with beer, wine, cocktails or soft drinks time and again.