From the Knit Rowan website:
Knit this chunky pull on accessory hat from Warm & Toasty, a design by Lisa Richardson using Alpaca Chunky an amazingly soft chain construction yarn (alpaca and polymide.) With chunky cable detail, this knitting pattern is suitable for the average knitter.

Finished dimensions:
Not given. Assumed to fit average woman’s head circumference.

Yarn Information:
Photographed in Heron 078
2 skeins
152 yards