The Classic Ultra Mini updates our most iconic silhouette with a lower shaft height, adding easy on-off and enhanced versatility. Featuring everything you love about the original, like signature UGG sheepskin and a flexible, ultra-lightweight sole, it pairs with virtually anything – the styling options are endless.The outsole of this product is either a SugarSole™ outsole, which is a responsible compound using sugarcane foam that allows us to reduce dependency on fossil fuels by replacing petroleum-based ethylene, or a Treadlite by UGG™ outsole.