Waterskins.
Hello! I've found myself wondering how the Norse carried water on their journeys. Naturally, we have evidence: various large containers, such as the tunni barrels. However, my question is about a smaller, more personal scale.
Is there surviving evidence of waterskins being used? That is, wood, plain leather or animal bladders. Cups and mugs were carried, be it of wood or metal, but those are more for drinking, rather than storage.
We have mentions of items that could be classified as waterskins. In the Grettis saga, one is stated to be carried by a hero. I'll be directly copying the text that can be found on Project Forlǫg:
“That morning, Þorgeirr got ready to row out to sea, and two men with him, one called Hámundr, the other Brandr. Þorgeirr went first, and had on his back a leather bottle [leðrflaska] and drink therein. It was very dark, and as he walked down from the boat-stand Þorfinn ran at him, and smote him with an axe betwixt the shoulders, and the axe sank in, and the bottle squeaked, but he let go the axe, for he deemed that there would be little need of binding up, and would save himself as swiftly as might be. […] Now it is to be said of Þorgeirr, that he turned from the blow as the axe smote the bottle, nor had he any wound. […] Thereat folk made much mocking, and called Þorgeirr Bottleback, and that was his by-name ever after.“
Are there more sources for the existence of such bottles?