The Ruffwear Big Eddy Float Coat for Dogs is the ultimate in canine flotation and H2O safety. Ideal for active canines who frequent the H2O, it is Built for aggressive swimmers in rough or fast-moving H2O, day or night. The Big Eddy is Ruffwear's premium, fully featured canine lifejacket. One of the biggest advantages of a Ruff Wear Float Coat: strategically placed PVC-free buoyancy cells that Strength dogs in a natural horizontal swimming position, allowing them to go farther, longer, with less fatigue.