CHOOSE THE RIGHT SIZE - Measuring Body Girth is critical for getting the best fit. Do not approximate or guess! Before placing your order, please measure your dog’s Body Girth at the widest point, behind their front legs. Use our Blue Sizing Chart and pick the right size. If your pet falls between two sizes, we advise ordering the larger of the two KEEP YOUR FURRIEST MATE SAFE - Vibrant colors and reflective strips increase visibility of your playful pooch day and night. Our dog life vest is equipped with a top rescue handle for a quick and easy grab on the go QUALITY MATERIALS - This Paws Aboard Doggy Life Jacket is made of quick-dry, breathable nylon fabrics for ultimate buoyancy. Lightweight, durable materials allow a wide range of motion for all-day comfort. Perfect for dogs and owners who love water sports!