To wear this shirt, simply button it up and pair it with your favorite jeans or shorts for a casual look. You can also tuck it in for a more polished appearance. When it comes to maintenance, machine - wash it in cold water with like colors to keep the fabric in good condition. Avoid using bleach as it may damage the polyester material. After washing, tumble dry on low to prevent shrinking. As for sizing, always double - check the size chart because each item might have its own unique measurements. If you're unsure, it's better to choose a slightly larger size to ensure a comfortable fit.