Under Armour - Knockout Tank. Color Vivid Magenta/White. On sale for $28.65. MSRP $35.00.. 4.6 out of 5 stars+7Brand NameUnder ArmourProduct NameKnockout TankGenderWomen'sColorVivid Magenta/WhitePrice$28.65MSRP: $35.00Rating5Rated 5 stars out of 5(21)