It keeps your dog warm, it keeps it dry, it is comfortable, it protects it from snow, it is lightweight, it does not get wet from snow or rain is cute. The protective cover on the dog jacket prevents the dog's fur and skin from being accidentally zipped - a very painful experience that your little dog cannot do with a dog vest. The zip is located at the back and makes it easier to put on and take off. When your little dog wears this dog jumper, he wont want to take it off. After you have returned from a walk, you will not experience any of those unpleasant moments when your dog is waiting for you to take it off. You also do not have to fight with them to put it on. Lightweight breathable cotton is soft, warm, fashionable, durable and comfortable. It is suitable for pets such as puppies, cats and other pets. When choosing the right size, simply measure the chest size of your dog with a tape measure and follow the chest circumference. We also recommend choosing a neck opening that is larger than your dog's head to achieve an accurate fit XSLength 21CM Bust 30CM Neck 18CM SLength 26CM Bust 35CM Neck 23CM MLength 33CM Bust 44CM Neck 30CM LLength 36CM Bust 48CM Neck 34CM xLLength 42CM Bust 55CM Neck 38CM