Using this Captain America pet costume is super easy. First, put the top on your pet. Just open the Velcro fastener on the back and slide it over your dog's body, then close the fastener. Next, gently place the headpiece on your pet's head, making sure their face and ears fit through the holes. For a Halloween or special event, you can take your pet out and let them enjoy the attention. When it comes to cleaning, check the label on the costume. Usually, you can hand - wash it in cold water with a mild detergent and let it air dry. Avoid using harsh chemicals or putting it in the dryer. Keep it in a cool, dry place when not in use to maintain its shape and color. Also, make sure the costume fits your pet properly to avoid any discomfort.