For my version, I chose to use Scheepjes Invicta Colour which is a sock yarn. I used just over one 100g ball. It only came went into the second ball as I did a super stretchy bind off.
This Psycho Knits describes this scarf as 'a fab TV knit'. I'd have to agree. It's fun and simple to knit with enough changes in the pattern to keep you interested. You just need to make sure you keep a good count on the rows to make the changeovers.