Blueberry Pet Pack of 1 Dog T-Shirt Ruffle Polo Dress Bow Dress Design Size: back length 12", neck girth 12", chest girth 16.5"- 19". Measure your dog from the base of the neck to the base of the tail for back length. The dog shirts in the first main picture are sold separately; Classy polo design that will win every pet owner's heart. Great for special occasion or every day wear Made of 62% polyester,33% cotton and 5% Spandex Machine-washable, with similar color items, in cold water on the gentle cycle