Kai Carrier, Kai Carrier Snack Packs How do I fill my Kai Carrier snack pack? It’s easy as 1-2-3! Open the snack pack ziplock. Push out the bottom of the snack pack to maximise the volume available. Fill with delicious food, but don’t overfill – the ziplock must be free of food to seal. overscan Is this site secure? How much does shipping cost?