Using this costume is super easy. First, decide which character you want to be. If it's the Hulk, just put it on normally. If you want to be Captain America, gently turn the suit inside - out and put it on. When you're done wearing it, take it off carefully to avoid any tears. As for cleaning, it's best to follow the washing instructions on the label. Usually, a gentle machine wash in cold water should do the trick. Make sure to let it air - dry. Store the costume in a cool, dry place to keep it in great condition for your next adventure.