Singletrak(TM) Dog Hydration Pack. The Ruffwear Singletrak(TM) Pack is a sleek, low-profile hydration pack for dogs that's ready for any adventure. Featuring two collapsible water bottles, two stash pockets for adventure essentials, and five points of adjustment for a customizable fit, the Singletrak is a great option for long days on the trail.Need help choosing the right pack? Click Here.... - Singletrak(TM) Dog Hydration Pack. |