The VinniBag is designed to get that bottle home safely. Optimized for a 750ml wine bottle, the VinniBag suspends a bottle in an inflatable air cushion. The air chambers will conform to the shape of the bottle, ensuring safe travels; in fact, the VinniBag is specifically engineered to withstand fluctuations in the altitude, pressure and temperature. And, it's easy to use; smply insert a bottle into the center, inflate by mouth or with a hand pump, roll up the bottom flap to form a leak proof seal, and snap the buckle closed. Your precious bottle is safe!