Perth is a lovely self-striping yarn. It's made of superwash wool and nylon--great for socks as well as shawls. Also, great for colorwork projects.
Fingering weight yarn
80% superwash wool, 20% nylon
100 grams / 437 yards / 400 meters
suggested gauge:27- 32 stitches on US 1-3 / 2.25 - 3.25 mm