Under Armour Kids - Boxer Brief Underwear (Big Kid). Color Steel/Racer Red. On sale for $24.92. MSRP $28.00.. 5.0 out of 5 stars+6Brand NameUnder Armour KidsProduct NameBoxer Brief Underwear (Big Kid)ColorSteel/Racer RedPrice$24.92MSRP: $28.00Rating5Rated 5 stars out of 5(5)