Okay, I'll bite... what is trace & toile? Is it a type of stabilizer for machine embroidery?
I just googled What is trace & toile. This is what came up....
Composition: Polyester. 'Wunder Trace and Sew' is a transparent fabric for tracing off paper patterns, stitching up the traced off pattern and testing the design. The traced off pattern can be altered from a fitting and then used as the master pattern to cut the garment from.
it is like the cutaway stabilizer, or vylene