To wear this shirt, simply button it up using the single - breasted closure. The turn - down collar can be adjusted for a more polished or relaxed look. It's great for both casual outings and semi - formal events. When it comes to washing, follow the care instructions on the label. Usually, it's best to use a gentle cycle in cool water. Avoid using harsh detergents that could damage the fabric. Hang it to dry to keep its shape. As for sizing, always refer to the size chart provided as different suppliers may vary. If you're unsure, it's better to choose a slightly larger size for a more comfortable fit.