The invisible stitch, also known as the ladder, slip, blind, or hidden stitch, is a commonly used hand sewing stitch. Invisible stitching is an invaluable skill to have that helps you upcycle your unwanted clothes and re-use them responsibly.
Easy steps to sew an invisible stitch:
Then repeat this, going through the knot you just made. Do this once more just to make sure it's extra secure. Finally, to hide the tail of the thread, go down through the knot, out the side of the fabric, and snip the thread.