While we'd never want to go back to a world without sewing machines, we have to admit that some sewing tasks are best accomplished with a good ole needle and thread.
The magic of the slip stitch is that it can be completely invisible on both the inside and outside of the garment. The stitch literally "slips" into the fold of the hem as you sew it.
Ready to give your stitches the slip?
1. Queue Up the Thread
Choose a thread that matches the color of your fabric (I'm using a lighter color in the photos here so you can more easily see my stitches). Thread the needle and tie a knot at the end. Now, insert the needle into the fold of the hem, in between the two layers of fabric.
Note: For this example, I folded the hem ½ inch, then again another 1½ inch. Your mileage may vary.
2. Pull it Taut
Pull the thread through so the knot is hidden inside the fold and the thread is taut. (The thread should only be visible from the top of the fold.)
3. Catch a Thread
Insert the needle into the main fabric a little ways over and level with the fold of the hem, catching only a very tiny amount of the fabric. This dot is on the outside of the garment, so you only want to catch a few threads.
Pull the needle through and pull the threads so they are tight, but not so tight that the fabric gathers up.
4. Stitch Along the Fold
Insert the needle into the fold, just to the left of where the dot was sewn, then pass it up a small distance inside the fold and back out of the fold. Pull the thread firm. The dot should be centered between the spot where the threads go in and out of the hem's fold.
5. Keep Stitching!
Repeat by passing the needle through a very tiny amount of the garment, keeping in line with the first dot you sewed.
6. Finish the Stitch
Finish the stitch by again passing the needle through the fold of the hem. Each stitch should be the same distance apart so the dots are evenly spaced on the right side of the fabric.
And now it's time to slip away. Well done!