Although dogs are natural-born swimmers, open stretches of water and fast-moving rivers pose problems to our four-legged friends. We lend our favorite pooch extra buoyancy during float trips, SUP sessions, and boat rides with the NRS Canine Floatation Device. The Canine Floatation Device features 2. 7 to 7. 9-pounds of buoyancy (depending on the size) to reduce our dog's fatigue in the water.