Under Armour - Iso-Chill Armourvent Bucket Hat. Color Castlerock/Black. On sale for $29.60. MSRP $35.00.. +3 colors/patternsBrand NameUnder ArmourProduct NameIso-Chill Armourvent Bucket HatColorCastlerock/BlackPrice$29.60MSRP: $35.00Rating