This is Hem Tape. I found it at a thrift store in a bag of hem tape remnants for 50 cents! Thrift stores are a really great place to find random sewing notions on the cheap.
Using hem tape is really great because it will finish a hem without you having to roll over 1/4". Sometimes this is useful because your fabric is slippery (as it was for me with this dress), and sometimes it's just fun to use because you can add a little secret pop of color to the inside of your clothes. This is how I use hem tape, though to be honest, I can't say if it's the right way to use it. I can't imagine another, so let's just assume I'm right here as I am with everything else.
1. Zig zag the hem of your garment and trim any wayward threads.
|Front View of Pinned Hem Tape|
3. Sew the hem tape to the hem with a standard straight stitch. Sorry, I used blue thread and you can't actually see my stitching.
4. Fold hem tape over and press. I used a very narrow hem, but you can of course fold as much as needed.
|View from Wrong Side of Fabric|
|View from Right Side of Fabric - So pretty! :)|
And look. It didn't!!
Please let me know if you have any questions. Happy sewing, lovelies!!!!