To use this T - shirt, simply put it on like any other shirt. It's great for daily wear, casual outings or even a bit of sports. When it comes to washing, use a gentle cycle in cold water to keep the colors and the pattern looking fresh. Avoid using harsh detergents as they may damage the 3D paint. Remember, this shirt has a slim fit, so pick a size one or two larger than your regular size. And don't be surprised if the color on the screen looks a bit different from the real shirt because of monitor settings.