Outdoor Research - Helium Rain Full Brim Hat. Color Slate. Low Stock. On sale for $43.91. MSRP $55.00.. 3.4 out of 5 stars1 left in stockBrand NameOutdoor ResearchProduct NameHelium Rain Full Brim HatColorSlatePrice$43.91MSRP: $55.00Rating3Rated 3 stars out of 5(11)