How to use: You can wear this blazer over a simple t - shirt and jeans for a casual look, or pair it with a dress for a more dressed - up style. It's suitable for many occasions like going out with friends, work, or a weekend stroll. Attention: Always check the size chart before purchasing to ensure a proper fit. Since different suppliers may have different sizing, don't assume the size will be the same as your other clothes. Maintenance: This blazer is made of polyester. You can machine - wash it on a gentle cycle with cold water. Use a mild detergent and avoid using bleach. Hang it to dry to keep its shape. If it gets wrinkled, you can use a low - heat iron to smooth it out.