Hey Soul Sister - one of my favourite songs by Train - is a cool self striping yarn with a purple/blue stripe and a stripe filled with the rainbow of speckles.
Ridley Sock Yarn is 80% superwash merino and 20% nylon. It has an 8-ply cabled construction which makes for a round, soft yarn.
Hey Soul Sister comes in 420 yards/skein.
For best and long lasting results, wash in cold water and lay flat to dry.