Using this shirt is super easy. Just put it on like you would any other casual shirt, and you're ready to go. It's great for all kinds of casual events. When it comes to washing, you can machine - wash it in cold water to keep the colors and pattern looking good. Avoid using harsh detergents as they might damage the fabric. After washing, tumble dry on low to prevent shrinkage. Make sure to check the size chart carefully before buying, as different suppliers may have slightly different sizing. If you're between sizes, it's usually better to go for the larger one for a more comfortable fit. And don't forget to iron it on a low - heat setting to keep it looking neat and tidy.