"This is one of our most precious styles, and oh, do we have the viral-status receipts to prove it. This ultra, elevated Classic Boot is a must-have combination of newness and nostalgia. It's made with rich suede and lined inside with our UGGplush™ blend for signature softness.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."