M: chest length: 40 cm, back length: 30cm, suitable for 2.5-3.5kg dog. To fit your dog better, please measure your dog’s size and compare to the size chart before ordering. Comfortable Material: The hoodie is made of soft, comfortable and warm material , slightly elastic, easy to put on and take off, and does not affect the dog’s movements and the toilet. Cute shape: The cute and unique shape makes the dog more festive. Suitable for home, parties, festivals and outdoors. This is the perfect hoodie for any event. Recommended breeds: cats and dogs of these breeds: Chihuahua, Pomeranian, Australian Terrier, Yorkshire Terrier, Toy Poodle, Pug, Maltese, Jack Russell Terrier, French Bulldog, Boston Terrier and so on. Note: Please check the size information carefully before ordering. to buy. For example, if your pup usually wears S, that doesn’t mean all sizes S will fit.