Koolaburra by UGG Kids - Riley Shimmer (Little Kid/Big Kid). Color Black. On sale for $16.99. MSRP $49.99.. 4.8 out of 5 starsBrand NameKoolaburra by UGG KidsProduct NameRiley Shimmer (Little Kid/Big Kid)ColorBlackPrice$16.99MSRP: $49.99