The Classic Ultra Mini features a low shaft height, adding easy on-off and enhanced versatility. Pre-treated to keep it looking better for longer, this Classic features everything kids love about the original: signature sheepskin lining, an ultra-soft UGGplush™ insole, and a flexible, ultra-lightweight sole made for all-day play. Pair with our matching adult-sized boot for cute mini-me photo ops. The outsole of this product is either a sugarcane EVA 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.