OK, felt the need to show this because apparently there is no certainty about how correct measurements are taken and would like to clarify things and eliminate the possibilities of misunderstandings and disputes. First of all, you need a measuring tape. Don't come with a yardstick, this is for a different job. Shoulders. The easiest. Jacket should be zipped up all the way, laid flat on a table, grab the shoulders and pull until leather becomes straight, but without stretching it. Measure from shoulder tip to shoulder tip. (Photo doesn't show exactly what I want, I will post another one later, it's a start though). Back. Put the measuring tape at the bottom of the collar and making sure the jacket lays completely flat, run it over it until the end of the knitted waistband. Simple. This is the correct sleeve measurement. Measuring the outer edge of the sleeve. Its maximum length. Don't do it as shown in the photo below. It's wrong. Wrong! See? One inch shorter. Chest. Grab the jacket under the armpits and pull until it becomes straight. Don't pull to hard you don't want to stretch it. Again, my photo isn't the best. Left side OK, right side not perfectly straight, but anyway, that's how the pit to pit measurement is taken. Thanks.