Different factors should be considered when choosing the interfacing for your garment piece:
- - Should the fabric pieces still stretch or not.
- - Should the interfacing help with the sewing of the stretchy fabric.
- - Should the interfacing just stick to the fabric piece (glue on one side) or
- - Should it stick two fabric pieces together (glue on both sides).
- - The type of glue used on the interfacing: the glue should not come through to the outerfabric side.
- - Should the outer fabric remain soft or be stiff.
- - Can I use for example a different fabric to come to the same outcome, for example when stiffening the brim for a hood.
I personally stay away from woven cotton interfacings and interfacings with glue on both sides. In my opinion, both types interfere with the natural flow of the fabric and make them stiff and hard.