Deby at So Sew Easy made a post on her blog that I think would be very useful to people just starting to sew. She breaks down the front and back of the envelope section by section and explains everything- including a use you might not have thought of for the side of the envelope that’s printed in other languages. Check out her post here. I wish someone had sat me down and explained the envelope back like this for me. I think the moment it finally clicked on how to measure myself to correlate to the envelope came when I emailed one of the “Big Four” and asked them exactly how I was supposed to be doing it. Lucky for me customer service at that company was great in helping me out and setting me straight!