Under Armour Kids - Prime Puffer Jacket (Big Kids). Color Mystic Magenta. Low Stock. On sale for $63.75. MSRP $85.00.. 5.0 out of 5 stars10 left in stockBrand NameUnder Armour KidsProduct NamePrime Puffer Jacket (Big Kids)ColorMystic MagentaPrice$63.75MSRP: $85.00