Using this suit is easy. Just put on the jacket and pants like you would with any other suit. For a more polished look, you can pair it with a nice dress shirt and a tie. When it comes to maintenance, since it's made of polyester, it's relatively easy to take care of. You can machine - wash it on a gentle cycle with cold water. Avoid using bleach as it may damage the fabric. After washing, hang it up to dry to prevent wrinkles. Before wearing it again, you can give it a quick iron on a low - heat setting. As for sizing, always refer to the size chart provided because different brands may have different sizing standards. Make sure to choose the size that fits you well for maximum comfort and style.