Under Armour - Iso-Chill Armourvent Bucket Hat. Color Castlerock/Black. On sale for $25.42. MSRP $35.00.. +3 colors/patternsBrand NameUnder ArmourProduct NameIso-Chill Armourvent Bucket HatColorCastlerock/BlackPrice$25.42MSRP: $35.00Rating