Blue Hills by Jenifer Stark

Blue Hills

Bulky (7 wpi) ?
12 stitches and 21 rows = 4 inches
in Stockinette Stitch
US 10 - 6.0 mm
125 yards (114 m)
One size fits most adults
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This pattern is available for free.

From the Pattern:  "Designed to be the perfect ski hat, the long back keeps the neck warm on the chair lift, while the doubled-up wool in the middle keeps the ears warm too."