Also known as no backing, because they are sewn into clothing by hand and don't need backing like an adhesive to help quickly attach to clothing.So you don't have to do anything with backing.Just follow the shape of the patch and sew it onto the garment. However, this type of patch takes a lot of time to sew, so it requires a lot of patience. However, if you have a sewing machine or girlfriend, it will be much easier.