What kind of yarn would you use?

[zjandosmom]

I found this great pattern for a shawl. The directions call for Rowan 4 ply.....that's all it says. I feel pretty silly asking but do you think it's wool, superwash, what can I use? I wanted to use something from knitpicks but not too expensive. TIA.
Kathy

Here's the pattern:http://www.shopknitch.com/pdfs/91010.pdf

[cinnamonamon]

According to ravelry, rowan 4 ply is a fingering (sock) weight. hth!

[zjandosmom]

that really does! I even looked at Rowan and couldn't figure exactly what yarn they meant. Thanks