From the Book’s website
Slouchy striped hat
Suitable for the knitter with a little experience.

From the Knit Rowan website:
Knit this accessory slouchy striped hat from Storm. A design by Kim Hargreaves using the wonderfully soft yarn Baby Alpaca DK (alpaca), this pattern is suitable for the knitter with a little experience.

Finished dimensions:
None given, but the hat is designed to fit an average sized woman’s head.

Yarn Information:
A - Jacob
2 skeins
218 yards

B - Lincoln
1 skein
109 yards