Under Armour - Knockout Tank. Color Castlerock/Black. On sale for $25.99. MSRP $35.00. 26% off. 4.3 out of 5 starsAdd to favorites. 0 people have favorited this+6Brand NameUnder ArmourProduct NameKnockout TankGenderWomen'sColorCastlerock/BlackPrice$25.99MSRP: $35.00Rating4Rated 4 stars out of 5(50)