The BIRKENSTOCK Zermatt is our first slipper with a removable sole, allowing you to choose between three different soles. You can choose between the standard sole, the soft sole and the sheepskin sole. All three soles can be ordered separately. Perfect for all year round! The basic version of this model features our Shearling sole. Elle has a shearling lining to keep your feet warm when temperatures drop. The upper is made of soft wool felt. Our (f) model is narrow width. Our (m) model is normal width. Anatomical cork-latex sole (sheepskin sole) Upper: wool felt Footbed lining: shearling Sole: latex Details: clog with extended shaft; decorative stitching; decorative rivet Sole "Made in Germany"