Under Armour Kids - HeatGear® Armour Sleeveless (Big Kids). Color Black/White. Low Stock. On sale for $19.28. MSRP $25.00.. 5.0 out of 5 stars3 left in stockBrand NameUnder Armour KidsProduct NameHeatGear® Armour Sleeveless (Big Kids)ColorBlack/WhitePrice$19.28MSRP: $25.00Rating5Rated 5 stars out of 5(3)