Condensation on a Water Bottle

Today, as I was drinking a bottle of chilled water with my lunch. I noticed that immediately after I took the bottle out of the refrigerator that condensation began to form on the outside of the bottle. As a child I formerly thought that condensation was the liquid from inside the container leaking through the walls of the container. This always caused me to try and drink my drink faster so I wouldn't lose that much to condensation. Today I was mindful that the condensation did not come from the liquid in the bottle, but is water vapor from the air condensing on the outside surface of the bottle.