How to wear this blazer? You can pair it with a simple white T - shirt and jeans for a casual look, or team it up with a dress shirt and trousers for a more formal occasion. As for care, this blazer is made of cotton and polyester. You can machine - wash it on a gentle cycle with cold water to keep it in good condition. Remember to check the size chart carefully before buying because our products are in Asian sizes, which are smaller than European and American sizes. Also, due to manual measurement, there may be a 1 - 3 cm error. And don't be surprised if the color of the actual item is a bit different from the pictures on the screen because of different computer displays.