Orange leather women's ankle boots with Primaloft® technology, EVA midsoles, OrthoLite® Recycled™ footbeds, and Michelin rubber outsoles (27% natural). Brutus Trek is contemporary high-performance take on classic styles. Upper: Calfskin (Leather Working Group Certified) Color: Orange Outsole/Features: 73% rubber / 27% natural rubber Side zip Michelin outsole: Superior grip and durability PrimaLoft® Technology: Climatic Comfort Midsole: 100% EVA Insole: OrthoLite® for cushioning Lining: 78% recycled polyester 22% pigskin