Staying hydrated is important for you, but also your pup! This water bottle is what I use with Loki & Freya. We fill it up with water, put it in the fridge and then move it to the freezer 30 minutes before we leave for our walk. It won't stay cold forever, but after about 15 minutes into our walk, Freya is nipping at me for a drink! The foldable cup means I don't have to carry something extra in my pockets and the strap helps manage the leashes as we walk. Great way to keep the dogs hydrated!