Wanderlust Women's Collette Black Warm Lined Water Resistant Ankle Boots Synthetic Synthetic patent upper resists water to help maintain a dry foot environment Adjustable hook-and-loop strap over the vamp lets you customize the fit Plush, faux fur lining and collar help keep feet warm and cozy Removable Warmtex insole adds extra warmth underfoot Durable, thermoplastic rubber outsole provides a flexible feel, even in cold temperatures