PETLESO Dog Santa Costume - Puppy Dog Christmas Coat Doggy Santa Costume Outfit with a LED Flashing Dog Tag Medium : Neck 11.5"/29.2cm ; Chest: 13.2/34cm" ; Back 9.8"/25cm, (This doggy Christmas coat size is smaller than normal size.Don't order it according label size only.) Doggy Puppy Cats Small dogs Santa costume , Christmas coat dress. Cute : Perfect gifts for Christmas , New Year or Parties or photo shoots. Package: 1 x Pet Christmas coat, 1 x LED flashing pet tag PETLESO Guarantee : Any dissatisfaction,please don't hesitate to contact us,we will follow up and refund to you immediately. It is recommended that you measure your dog&#039;s chest circumference and the standing height and neck circumference. chest circumference is the perimeter of the widest of dogs chest. the standing height is from your dog foot to your dog neck. Your baby usually wears size S doesn&#039;t mean all size S will fit him/her. If any of the measurements are &#039;between&#039; two sizes, choose the larger size.