Under Armour Kids - Knockout Tank (Big Kids). Color Rebel Pink/White. Low Stock. On sale for $23.79. MSRP $28.00.. 4.8 out of 5 starsAdd to favorites. 0 people have favorited thisLow Stock+2Brand NameUnder Armour KidsProduct NameKnockout Tank (Big Kids)ColorRebel Pink/WhitePrice$23.79MSRP: $28.00Rating5Rated 5 stars out of 5(5)