Making a PV kilt

[The Wizard of BC]

Perhaps the issue here is one of symantics.

I use the term "shape" to mean the dimensions of an item. i.e. a triangle is a shape.

I use the term "shaping" to mean what you do to a flat piece of fabric to "mold" it, allowing it to conform more easily to a 3 dimensional human form.

Let me give an example.

Take any piece of paper and fold it on a straight line. On the back side of the fold the paper will lay flat.

If, however you attempt to fold a piece of paper on a curved line, in the back, the paper will no longer lay flat.

With wool the back side can be shaped with steamand it will distort and lay flat quite easily.

Poly/Rayon fabric is less forgiving of shaping so will be harder to mold to lay flat.