The Thunder Shirt for Dogs in Heather Gray Classic XS size is a high-quality pet shirt designed to provide comfort and relief from anxiety for dogs of all breeds. Made by ThunderShirt, this pet shirt is personalized with a classic gray color and is perfect for dogs who need a high visibility option. With its comfortable design and focus on calming effects, this Thunder Shirt is a must-have for pet owners looking to help their furry friends feel more secure and calm.