Why risk damaging that precious gift of a bottle of wine, or your duty free special, in your on board luggage.Imagine what it could do to the insides of a suitcase at high altitude. The Wine Skin is the most useful storage bag for a bottle of wine a traveller can have. You take your bottle, insert it in the bottle-shaped bubble wrap bag, and seal it up air-tight. The packaging air bubbles help prevent it from breaking in-flight, but if you hit turbulence, the seal prevents any liquid from leaking out and ruining your clothes.