Using this dog t - shirt is easy. Just slip it over your dog's head and adjust it to fit comfortably. When it comes to maintenance, you can machine - wash it in cold water with like colors. Tumble dry on low. As for precautions, make sure to check the size chart before buying to ensure a proper fit. Avoid using harsh detergents as they may damage the print and fabric. Also, keep an eye on your dog while it's wearing the shirt to ensure it doesn't chew or tear it.