There are many cheap imitators, but the Acorn Women's Sheepskin Sport Mule Slipper is the real deal. This ultra-comfy slipper is made with genuine double-face sheepskin—warm and fuzzy on the inside, and luxurious leather on the outside. The leather repels moisture and resist stains, while the plush sheepskin lining naturally insulates, breathes, and wicks moisture so your feet stay comfortable. The anatomically-contoured footbed supports and cushions the foot, while an EVA heel wedge enhances stability. You can wander around the house or outdoors, and the rugged sawtooth tread grips when the ground outside is icy or slick.