Boiled wool is a must for seriously cold weather. Pistil's comes from a third-generation family-run mill in Italy. The wool is woven and washed to create the dense knit structure that makes it such an amazing insulator. The Pistil Powder Beanie bundles you in thick boiled wool with a vintage-inspired Nordic snowflake motif. A cheery pompom completes the slope-ready look of this women's hat.