The UGG Australia Birche Shearling slipper is made of dyed sheep fur from one of the following locations: Australia, New Zealand, Ireland, the United Kingdom, or the United States. These slippers are also constructed of textile and leather components. The upper part of the slipper is lined with jersey knit for a comfortable fit. The leather sole provides a secure walking surface on hard floors. These slippers have the UGGpure insole and 10mm sheepskin for warmth and comfort while lounging.