What is understitching? (and how to do it)

Wondering what understitching is? It's a really important step that you may be tempted to skip - but that you definitely shouldn't!
I'll show you how to understitch your facings and pockets in this video!
Music:
Morning Joe, Patiño
Sound Effects:
Punch Swoosh Series, RUclips Audio Library

[@regulartransport-user5340]

That is the first time someone has explained it and it made sense to me!
Also love that the video is short and to the point. Found out exactly what I needed to know!❤