Some fabrics hold their shape very well but others are really a problem. A simple solution to prevent these areas of the pattern from warping is to use some kind of fusible interfacing to hold it in place.
One practice I do a lot is to cut strips of fusible interfacing about 1 cm wide. It’s true that there are some options on the market that are already sold cut but for me it’s a good way to use the remnants of larger interfacing scraps that are left over when I sew some clothes.
Use the interfacing strips to glue them onto the fabric following the shape of the armhole or neckline. If you glue the interfacing before cutting the fabric, you can make sure that the shape will remain correct.
This method can also be used to prevent the edge of the fabric from fraying, so depending on our project and/or objective, we could outline the entire piece with interfacing.
See you soon!