Under Armour Kids - Infinity 2.0 Novelty (Big Kid). Color Sonar Blue/Sonar Blue/Blue Surf. On sale for $47.10. MSRP $65.00.. Brand NameUnder Armour KidsProduct NameInfinity 2.0 Novelty (Big Kid)ColorSonar Blue/Sonar Blue/Blue SurfPrice$47.10MSRP: $65.00Rating