Place the fabric over the hole. Sew along the perimeter of the fabric square with a simple overlock stitch.

An overlock stitch is a sewing technique where the edges of one or more pieces of fabric are sewn together. Watch a short video to learn how to sew the overlock stitch by hand.

Make sure to sew through only the patch fabric and the bra's inner fabric layer. The thread should not show at the front of the bra!