This tutorial on how to hem a dress will give you insight on an essential sewing technique. After this tutorial you will understand how to hem pretty much anything, and you’ll also be able to hem other things like pants, skirts, and shirts. What is a Hem? A hem is the edge of the clothing material turned under and sewn. Why Hem? Most clothes bought today, with the exception of some men’s pants, already come hemmed at a predetermined length. So, you would want to hem your own clothes to make the length shorter. Hemming also prevents fraying. How to hem depends on the type of material: Knit: Most apparel fabric…