Under Armour - Knockout Tank. Color Viral Blue/Black. On sale for $25.86. MSRP $35.00.. 4.6 out of 5 stars+6Brand NameUnder ArmourProduct NameKnockout TankGenderWomen'sColorViral Blue/BlackPrice$25.86MSRP: $35.00Rating5Rated 5 stars out of 5(21)