Egos Copenhagen Slipper - Mustard - Egos indoor slippers and shoes are made of pure natural sheep's wool. The natural properties of wool make the material ideal for an indoor shoe. Your feet never feels too hot or too cold. The shoe has a double sole of felt that make it extra comfortable and pleasant. The outer sole is suede. Egos are 100% handmade in Nepal and are certified by the World Fair Trade Organization.