Under Armour Kids - ColdGear Armour Long Sleeve T-Shirt (Big Kids). Color Royal Blue/White. On sale for $38.70. MSRP $45.00.. 5.0 out of 5 stars+3Brand NameUnder Armour KidsProduct NameColdGear Armour Long Sleeve T-Shirt (Big Kids)ColorRoyal Blue/WhitePrice$38.70MSRP: $45.00Rating5Rated 5 stars out of 5(31)