Our Boyt Water Bag is the answer when traveling with your dog and needing to minimize weight and bulk. When "collapsed", the bag is 12" in diameter, but only 1 1/2" high. When expanded, it's 12" high, easily holding over a gallon of water! The durable and tightly woven waxed cotton canvas construction is water tight and will provide years of continuous service.
We've offered this product to our customers for years and everyone who purchases one loves it - we never have a return!