This men's casual blazer is great for everyday use. You can wear it over a simple t - shirt and jeans for a relaxed look, or pair it with a dress shirt for a semi - formal event. When it comes to sizing, always refer to the size chart as different suppliers may have different measurements. If it's Asian size, go for a bigger size. For maintenance, this blazer made of polyester and cotton can usually be machine - washed on a gentle cycle. But check the label for specific instructions. Hang it up to dry to keep its shape. With proper care, this blazer will be your reliable companion for a long time.