When used at the hem,
they provide extra fabric that, when blocked,
creates the shirt-tail like bottom.
When used at the bust
as shown, they create something of a pocket
for the fullness of the bust to fit into
without disturbing the side seams.
"When used at the hem, they provide extra fabric that, when blocked, creates the shirt-tail like bottom.
When used at the bust as shown, they create something of a pocket for the fullness of the bust to fit into without disturbing the side seams."