. Under Armour - Performance Cotton - Solid 6 In 3 Pack. Color Castlerock. $42.00. 4.0 out of 5 starsNew ColorAdd to favorites. 0 people have favorited thisBrand NameUnder ArmourProduct NamePerformance Cotton - Solid 6 In 3 PackGenderMen'sColorCastlerockPrice$42.00Rating4Rated 4 stars out of 5(72)