The most common question that people will have when buying ski boots, especially those purchasing for the first time, is, "how do I determine what my size is?" Well, if you aren't a skier who already knows his or her ski boot size, there is a simple technique that you can use to determine the proper size for you. First, you will need a piece of cardboard that is large enough for your foot to fit on, both length and width wise. You can also use a pad of paper of a piece of cardboard is not available. You will also need a pen or marker, as well as a tape measure. If you have a tape measure that offers you a centimeter measurement on it, it is suggested you use that. To determine your ski boot size, get a friend to trace your foot on to the piece of cardboard or paper while you are standing on it. Then take the tape measure and measure from the tip of the foot to the heel. This measurement will be used to determine your boot size. Ski boots are sized on the Mondo Point size scale, which is in centimeters. If you used a tape measure that offered a centimeter display on it, you can simply take this measurement and you have your boot size in Mondo Point. However, if you measured your foot in inches, you will want to take this measurement and multiply it by 2.54. This will give you your boot size in Mondo Point (centimeters).