I hate to say it, but it will not
work for clogs. It says on the label that it felts, but it really doesn't.
It's only 50% wool, so I guess that's why. I bought about 5 balls of it in my newbie days before realizing that you need much more wool content for something to felt correctly. I did a test swatch and "felted" it and it really did nothing but get fuzzy. The balls have been sitting in my stash ever since and looking at them just makes me angry.