Our winter boot is made of recycled, waterproof ultra suede upper (made in Japan), plush, faux fur lining and non-skid sole. We tried them out this week in freezing NYC temperature and our feet were super warm. Felt like we were walking in our house slippers! :0) We are taking preorders now for mid Januaury delivery. Take advantage of the 25% discount which expires Dec 25th.(Then this style will go back to regular price).