To wear this shirt, simply button it up and tuck it in or leave it out according to your preference. It pairs well with jeans for a casual look or chinos for a semi - formal touch. When it comes to washing, use a gentle cycle with cold water to preserve the color and shape of the shirt. Avoid using harsh detergents as they can damage the fabric. After washing, air dry the shirt instead of using a dryer to prevent shrinkage. Always check the size chart before purchasing to ensure the best fit. And remember, each item may have its own unique size chart due to different suppliers and brands.