These men's long sleeve shirts are a great addition to your wardrobe. They're perfect for casual outings. To wear them, just button up the single - breasted closure and adjust the turn - down collar. When it comes to sizing, remember to check the size chart as each item may have its own. If it's Asian size, go for a bigger size. For maintenance, you can machine - wash these shirts made of polyester and spandex. Just use a gentle cycle. Hang them to dry to keep their shape. Store them in a cool, dry place when not in use.