Even if using a naturally crisp or heavy material, you will need interfacing in structural areas so that they are less limp than the rest of your garment. ... Made out of only cloth, it would be like a pocket. It would sag and distort when you put things in it. Interfacing is what gives a purse the ability to hold a shape.

Can I skip interfacing?

Just like you can skip exercising, you can skip interfacing. ... Interfacing is a textile that is either sewn in or fused on using a steam iron, between layers of fabric, to give it structure and body. Interfacing in itself is not very exciting, but it is one of the keys to achieving a professional look to your project.

What happens if I don't use interfacing?

It is important to have interfacing to complete the garment. Without interfacing and the proper technique, the garment will hang and sag which does not give a professional appearance. Whether you are using alternative way, or store-bought adhesive or sewn-in interfacing, use it wisely.