Need stitch pattern for hat--rib and garter

I see this hat at REI.com, item # 837435. Here's a link:
http://www.rei.com/product/837435/sherpa-adventure-gear-phortse-hat-womens

I'd like to knit a hat and scarf with this pattern.

Does anyone here know the stitch pattern for this, please? I can work out the whole hat pattern (size, # of stitches, color changes, etc.). It looks like one rib, then 4 garter stitches repeated. I've tried to copy it myself but it hasn't worked out.

I also prefer to knit hats on circular needles. But if I have the pattern for straight needles, I can convert it myself.

Thank you!

Forums: 

This stitch pattern involves Fair Isle knitting. Knitting with 2 different yarns on the same row. Do you know how to do the Fair Isle pattern?

After the 1 x 1 rib in yellow: K1 (yellow), P3, (red), K1 (Y), P3, (R). Repeat all the way around.

Then all you have to do is change the red yarn to blue or green however many rows you want.

Hope this helps. Lorna