Under Armour Kids - 2 Pack UA Blur Boxer Brief (Big Kids). Color Ultra Blue. On sale for $17.59. MSRP $19.99.. 5.0 out of 5 starsBrand NameUnder Armour KidsProduct Name2 Pack UA Blur Boxer Brief (Big Kids)ColorUltra BluePrice$17.59MSRP: $19.99Rating5Rated 5 stars out of 5(6)