Using this NFL Chicago Bears dog jersey is super easy. Just slip it over your dog's head and adjust it so it fits comfortably. When choosing the size, make sure to measure your dog's chest and neck correctly. As for maintenance, it's best to machine - wash the jersey in cold water on a gentle cycle. Avoid using bleach as it might damage the colors and the fabric. After washing, let it air - dry. Always keep an eye on your dog while it's wearing the jersey to ensure it doesn't chew or pull on it. If the jersey gets dirty often, you can wash it regularly to keep it looking fresh.