PLEASE READ THIS FIRST BEFORE BUYING! DO NOT look at the Amazon size chart. Please only look at our MYS size table in Picture 2 and 3. You can first check pic 2 to find the potential sizes according to your height and weight. And then you come to pic 3 and check the exact measurements of these potential sizes. Make sure your body's chest circumference is at least 2-3 inches smaller than the jacket's chest circumference, and your body dimensions should be smaller than the jacket's dimensions in every aspect so that you have play room inside. If you are not sure, we strongly suggest you to inquire about size first. You can tell us your height, weight, chest circumference and waist circumference and we will figure out the best size for you. Please note that your suit may come with a size tag which is bigger than what you ordered. That does not mean you received a wrong size. It’s only because the tag is in Asian size scale. Please don’t worry about this. Thanks! Jacket, vest, pants and tie are included. Shirts are NOT included.