Do you own a sweater tunic with an odd, out-of-style length? That one that doesn’t quite cover your behind and goes with all of your high-waisted pants from the previous year? The good news is that they’re simple to crop using a torso-width piece of flat elastic (which I explained at the end of this post). You may also use a single hair elastic to create a knotted effect at the hem for a (what I believe) inventive no-sew technique to shorten a sweater.
All you have to do is 1) fold your (longer) sweater from each side towards the center (as shown in the top left corner of the above image), 2) lift the sweater so the underside is exposed while maintaining the folds you made earlier, 3) tie the hair elastic where you want the new hem to fall, and 4) tuck the gathered piece of material (and the sides of the sweater) inward.
Bonjour! Your sweater has a clean knotted front and a shorter length.