NUOVO M size (Approx. 23cm 23.5cm) Black Heel: 3cm I purchased these about 7 years ago and I think I only used them a few times. There is no zipper. I have used them, so there may be some dirt and scratches. I think they are made of synthetic leather, but they don't have a glossy look, so they look like real leather. The soles are winter shoes designed for snowy roads and have non-slip grips. Please understand that these are items stored at home! #Long boots #Boots #Winter shoes #Snow boots #Women's boots