For anyone looking for the perfect shoe to wear with airy, lightweight outfits on warm days, these espadrille mules deserve a place on the shortlist. The ease of entry into these loose-fitting slip-on shoes, in particular, predestines this model with its characteristic natural-fiber sole for your casual looks. In addition to the calfskin upper, the lining of these mules is also made of leather and, as a result, offers excellent breathability.