Hi Kepel and Robyn, thanks for your responses.

Kepel, your suggestion to use the Solidify modifier at first sounds like the perfect answer to my question, except I would have the same problem as the original mesh, because I wouldn't be able to UV Map the "inside" polys, and that's why I saw the stretching when I textured it with the original UV Map. Your second suggestion is how I got those faces I painted red to begin with. Those are not the polys from the original mesh.

Robyn, the original mesh actually simmed quite well. Here's a couple of renders I did with the initial textures I was planning for the outfit. The first one is a solid color with only a bump map to give it a linen-like texture. The second one, however, was done with one of my Filter Forge knit filters, and you can see the dark lines on either side of the shoulder straps I had to throw in via postwork to hide the stretching.

Anyway, I'll be playing some more and let you know if I figure out a work-around.

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OK . . . Where's my chocolate?

Butterfly Dezignz