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. Protected: Post Applied Treatment Topically applied water repellency treatment 17mm Twinface sheepskin upper Rear pull tab, Overlock stitch detailing on seams 17mm sheepskin lining 17mm sheepskin insole Sugarcane EVA Outsole or Treadlite by UGG™ EVA outsole Recycled polyester binding 5" shaft height Leather heel label with embossed UGG® logo Best for: Casual