Very useful. . . your dog can wear it seven times a year. These stretchy 100% cotton ribbed dog personality tank tops, with quality silk screened lettering, are completely machine washable & made in the USA.. Lightweight, comfortable, hip & humorous ?muscle tee? style designer tanks tops for small and large dogs. See pet sizing chart for proper fit. Also available in dog tee shirts, dog sweatshirts, doggie bandanas & cute dogs tee shirts.