For this project, you will need:
The last item on the list is arguably the most important unless you happen to have a lot of time on your hands and a passion for hand-stitching stretch knit fabrics. My sewing machine is a Janome and comes with built-in stitches for knit fabrics, which was particularly handy.
Next, you'll need to cut your stockinette to the appropriate length, leaving room for seam allowances. Because the ends will be stretched out, I added an inch and a half to my measurements. I cut one 55 inch piece and two 12-inch pieces.
Sew one end of the stockinette closed. I chose to round the corners instead of leaving them squared off, but that depends on personal choice. The purpose of this tubing is function and not fashion, after all. I trimmed the corners to remove bulk and decided to turn my tubes inside out to hide my seams.
Next, It's time to stuff the tubes and pin the ends closed. I tried my best to stuff the tubes about the thickness of my arm, but poly-fil is quite lumpy and made it difficult to have a uniform texture. Squishing and rolling the tubes after they're sewn shut helps to distribute the fiber evenly.
Because stockinette is so stretchy, when sewing the other end closed there will inevitably be some stretching of the seam. Mine turned out a bit curly. An important thing to remember is to sew the seam completely shut so the stuffing doesn't fall out.
Now you have completed your fabric tubes! Though they looked amazing on me as an avant-garde fashion statement, I decided they would look better in their intended home: the bodice.
I carefully inserted the tubes through the arms of the bodice (which felt a bit like dressing a doll), added the side supports, and moved the garment with its new supports into an acid-free cardboard box lined with muslin for extra protection. This piece is in a much better home than its original one, where the arms were all folded up to fit in a plastic box.
I had a totally “tube"-ular time working on this garment, and I'm happy to know my work will help prevent this beautiful garment from permanent folds and creases.
— Sarah Nolt, University of Delaware Art Conservation Honors College Class of 2026