This Kamen Rider Gaim T - shirt is super easy to use. Just slip it on and show off your love for the series. When it comes to washing, you can throw it in the washing machine on a gentle cycle with cold water. Avoid using harsh detergents as they might fade the colors. After washing, let it air - dry to keep its shape. And remember, since the sizes are Japanese and tend to be smaller, double - check the size chart before you order to make sure you get the perfect fit.