Using this dog t - shirt is super easy. Just gently put it over your dog's head and adjust it so it fits comfortably. Make sure not to pull it too tight around your dog's neck or body. When it comes to maintenance, you can machine - wash it in cold water on a gentle cycle. Avoid using harsh detergents as they may damage the fabric and the sublimated logo. Hang it to dry instead of using a dryer to keep the shape and colors intact. Also, check the t - shirt regularly for any signs of wear and tear, especially around the tags. If it gets too loose or damaged, it's time to get a new one.