1. An interfacing is a special type of fabric applied to the inside of a garment to give it shape, body, and support.
2. It can be applied to the entire garment but is usually applied only to parts, such as collars, front or back openings, lapels, and hems, and to such details as pocket flaps.
3. Interfacings are made from many different fibres in several weights and degrees of crispness; they may be woven or non-woven. A comparatively new category of interfacings, fusible interfacings, instead of being stitched to the garment fabric, are ironed onto it. Fusible, too, may be woven or nonwoven.
