Blueberry Pet Multi Designs Soft & Comfy Cotton Blend Dog Shirts Size: back length 14", neck girth 13.5", chest girth 18"- 21.5". 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; Fresh and elegant look; Vivid and bright colors will definitely make your pooch stand out from the crowd! Curved Hem and short sleeves Made of 62% polyester,33% cotton and 5% Spandex Machine-washable, with similar color items, in cold water on the gentle cycle