Its ultra-lightweight, durable outsole, UGGplush™ lining, and suede upper. It goes with anything and has an easy slip-on silhouette that will stay timeless forever. 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.