Arc'teryx - Wool Calidum 5 Panel Hat. Color Dark Pytheas. On sale for $41.80. MSRP $55.00.. 5.0 out of 5 stars+3 colors/patternsBrand NameArc'teryxProduct NameWool Calidum 5 Panel HatColorDark PytheasPrice$41.80MSRP: $55.00Rating5Rated 5 stars out of 5(3)