A whip stitch is when you take the in-side-out garment edges, match them up flat one on top of the other, and stitch around and around the cut edges every 1/8 inch or so. Then when you turn it right side, all stitching will be on the inside. If you look at how most leather gloves and hats are made, if the stitches are on the inside, chances are it is whip-stitched....hope that helps.