my boyfriend has a really nice dark blue merino jumper with 2 massive holes. I didn’t know what to do with them until a friend of mine introduced me to the woolfiller. it fills holes easier than you can imagine. the technique reminds me of felting. but it’s without water and much quicker.
I decided to fix my hole problem with light grey woolfiller. it was maybe not the most aesthetics decision. it looks a little bit like mold. but I am happy because I can wear the jumper and it has no holes anymore. you should check heleen’s website for some good looking examples.