Water bottle sleeve
This cool product will blow you away.Made of 5 mm neoprene (wetsuit fabric), this sleeve converts 1 liter plastic bottles into something you can carry with you every day to stay hydrated. The Neoprene keeps the contents insulated and you will have cool refreshment all day long. Have a look how to use this item on this site.
And yes, we do realize a bottle of wine and a 750ml quart of beer also fits in the sleeve perfectly!