This men's long tassel punk-style vest with metal rivets is a great addition to your wardrobe. To wear it, simply put it on over your shirt or top. It's a sleeveless design, so it's perfect for warmer days or layering. When it comes to sizing, make sure to check the size chart as different suppliers and brands may have variations. For example, if you're a US size S, go for an Asian size L. As for maintenance, it's made of cotton and spandex with a nylon/cotton lining. You can machine wash it on a gentle cycle with similar colors. Avoid using harsh detergents or bleach. Hang it to dry to keep its shape. And that's all you need to know to enjoy this stylish vest!