The K-9 Float Coat from Ruffwear is the ultimate in canine flotation and water safety. Confidence-inspiring canine life jacket designed for safety and fun. Natural swimming position aided by strategically-placed foam panels. Low-profile handle optimally positioned to help dogs out of water. Neck closure adjusts, yet is permanently attached and secure. Sheltered buckles stay in place for easy, one-handed clipping. Light loop on top for attaching The Beacon light device. Reflective trim is easy to see in or out of the water. To determine correct size, measure your dog's girth (the widest part of the rib cage.