Under Armour Kids - ColdGear Armour Long Sleeve T-Shirt (Big Kids). Color Royal Blue/White. On sale for $37.39. MSRP $45.00.. 5.0 out of 5 starsAdd to favorites. 0 people have favorited this+5Brand NameUnder Armour KidsProduct NameColdGear Armour Long Sleeve T-Shirt (Big Kids)ColorRoyal Blue/WhitePrice$37.39MSRP: $45.00Rating5Rated 5 stars out of 5(31)