You can use any light or worsted weight yarn. I prefer the Caron Simply Soft because it a bit thinner than regular worsted weight and it’s shiny. This slouch is made from the bottom up. You can even add more colors to the mix to give it a funky look. I’m sure I’ll make one with more colors soon. I’m not a pattern writer so I’m sure there will be mistakes. Let me know if you get stuck or have any suggestions. Thanks!!