Koolaburra by UGG Kids - Riley Shimmer (Little Kid/Big Kid). Color Black. On sale for $20.00. MSRP $49.99.. 4.8 out of 5 starsBrand NameKoolaburra by UGG KidsProduct NameRiley Shimmer (Little Kid/Big Kid)ColorBlackPrice$20.00MSRP: $49.99