Hi,
I hemmed my brother's (casual) pants by hand as an exercise and noticed that "wrong side" of modern clothing is so different from years ago. If you watch "Hemming pants by Hand" beginner tutorials on YouTube, they are always simple polycotton trousers with seams pressed open. However, the side seams in the pants I was hemming were so different. One kind of ran down the side of the leg like a cord covered with many, many looping stitches. Perhaps that's an overlocker / overcast feature? Forgive my ignorance. I hope to be able to post a picture tomorrow to better illustrate my point. You see, it's hard to learn or to access the right tutorial, when you don't even know what you're looking at. Please help as he wants me to hem all his pants! Thanks in advance.