The water bottle that goes with your dog! The Vapur 0.7L Wide Mouth Anti-Bottle is reusable, foldable, attachable, freezable, sustainable convenience, all in one easy to grip, streamlined bottle. Fits the medium and large Dog Backpacks perfectly, and can be filled about halfway and folded in half to fit the small Dog Backpack and Utility Pack. Or, use the included carabiner to clip to the Utility Pack. Once the water is drank, roll it up and clip the carabiner over the roll to store away super tight. Grab one or two to always have on hand.