We have tried: We sewed the elastic onto the garment, it worked very well. It is soft, pliable and easy to sew. When sewing and stitching the elastic, we recommend using a line in which there is no elastic, the result - accurate and precise sewing and stitching of the elastic. The advantage of stitching elastics is that they do not have to be sewn into the tunnel, but only into the reverse side of the clothing. I washed and ironed the spring at the recommended temperature specified by the supplier, it shrank by 2%.