Under Armour Kids - Play Up Solid Shorts (Big Kids). Color Midnight Navy/White. On sale for $19.31. MSRP $20.00.. 4.7 out of 5 stars+14Brand NameUnder Armour KidsProduct NamePlay Up Solid Shorts (Big Kids)ColorMidnight Navy/WhitePrice$19.31MSRP: $20.00Rating5Rated 5 stars out of 5(49)