I have a bias cut Sidonie skirt in a loose weave silk/wool mix. I hemmed it once with a baby hem and it distorted the hem line, flaring the skirt out too much. I have cut off the offending area, added to the skirt to make it longer, and now need to hem again. I have left the skirt to hang for a few days but want to know the best technique to use. If I hand sew an invisible hem it will leave the edge raw, which won’t suit this fabric. What else could I try?