This men's casual long - sleeved pinstripe business shirt is a great addition to your wardrobe. To wear it, simply button it up and pair it with your favorite pants or jeans. When choosing a size, remember to check the size chart carefully as different suppliers have different sizing. If it's an Asian size, it's advisable to go a size up. For maintenance, you can machine - wash it in cold water on a gentle cycle. Hang it to dry to keep its shape. Avoid using bleach as it may damage the fabric. This shirt is made of a blend of viscose, polyester, and spandex, so it's comfortable and has a bit of stretch. Wear it for work, casual outings, or any occasion that calls for a smart and relaxed look.