This men's suit set is perfect for formal occasions. To wear it, simply put on the trousers first, then the vest, and finally the jacket. Make sure to check the size chart carefully before purchasing as different suppliers may have different sizing. If it's an Asian - sized item, choose a bigger size for a better fit. When it comes to maintenance, dry - cleaning is recommended to keep the fabric in good condition. Avoid excessive stretching or rough handling to preserve the slim - fit look of the suit. Also, store it on a proper hanger in a cool, dry place to prevent wrinkles and damage.