The notion of outfitting the inventor of the doggie paddle with a personal floatation device may seem a little absurd, but there are plenty of reasons to consider a PFD for your pooch. First of all, not every dog is born a water-trial champion. While all dogs can swim a little bit purely out of instinct, not all can stay afloat indefinitely. If you are canoeing, boating, or ice fishing with your buddy, or just want to take precaution against fatigue in the water, a PFD made specifically for canines is the way to go. Here are a few things to consider.