Zappos.com is proud to offer the Orthaheel - Navarre Mule Slipper (Navy) - Footwear: Give your feet the royal treatment with the Navarre Mule Slipper from Orthaheel. ; Breathable felted Italian wool upper maintains a cozy and comfortable wear. ; Open entry allows you to take on and off with complete ease. ; EcoFresh anti-microbial, odor-r...