NWT UGG Butte Waterproof Boot (Men) size 9 The waterproof leather boot is designed to handle all the elements, with a rugged Vibram® outsole. The soft, cozy lining is made from faux fur and plush UGGpure™, a textile made entirely from wool but crafted to feel and wear like genuine shearling. Temperature-rated to -20 degrees Celsius Removable insole Leather upper/UGGpure wool and textile faux fur lining/Vibram® rubber outsole #UGG # UGGBOOTS #UGGMENBOOTS