Hmmmm possibly the only option is to copy the pattern and make a new tighter pair, the way I learned to make patterns is to cover your sock covered foot with overlapping layers of masking tape (the paper like one for painting edges) both directions, then draw on where the seams and the back line and front line are (so you get both sides) then cut off with scissors along the seam lines, then ypy have your pattern. I will do a workshop later on for sure, :-) itd sad when your fav shoes die....nice to remake :-)