Size:L | Color:Santa Claus Suit Pet Dog Cat Costume Suit Christmas Festival Cute Santa Claus Suite Pet Costume, SantaCarefully Measure the base of the neck to the base of the tail of your dog and its chest girth and neck girth. Compare with our product images’ description and Make sure you choose out the fittest Costume for your beloved dogs!How to choose the sizeIt is recommended that you measure your dog’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. The pet costumes is a standing clothing?please mainly consider the chest circumference and neck circumference and standing height. and back length is the auxiliary factor.Your baby usually wears size S doesn’t mean all size S will fit him/her. If any of the measurements are ‘between’ two sizes, choose the larger size Remind you note: pet clothing chest circumference should be greater than the actual chest circumference of dog, it is convenient for its activities. Please consider 0.5 inch error.