'Wine skins' in the Bible

Acting with deceit, got food together as if for a long journey; and took old food-bags for their asses, and old and cracked wine-skins kept together with cord;

And these wine-skins were new when we put the wine in them, and now they are cracked as you see; and our clothing and our shoes have become old because of our very long journey here.

So truly, the days are coming, says the Lord, when I will send to him men who will have him turned over till there is no more wine in his vessels, and his wine-skins will be completely broken.