Let’s make an example of flatstitching by joining a strapless neckline facing in a body pattern.
As you can see the facing follows exactly the same neckline as the neckline on the body. Place both pieces right sides together and stitch a seam allowance.
The next step is to iron the seam allowance towards the facing piece. Once you have the seam allowance flat on the facing piece you can stitch along the seam line with a separation of 2-3mm. This is what we call flatstitching or understitching.
If the piece you’ve sewn has a curved shape, as in this case, you can make some notches before stitching so that the fabric can be handled more comfortably.
Turn the facing to the inside of the body and iron the seam.
It’s done. Remember that you can do this type of stitch anywhere on a garment when you need extra support to hold the pieces in place.
See you soon!