Under Armour Kids - Build Up 1/4 Zip Sweater (Little Kids). Color Lunar Purple. Low Stock. On sale for $28.50. MSRP $38.00.. Add to favorites. 0 people have favorited this4 left in stockBrand NameUnder Armour KidsProduct NameBuild Up 1/4 Zip Sweater (Little Kids)ColorLunar PurplePrice$28.50MSRP: $38.00