This Rieker men's mule is an innovative variation of a slipper. The cut and the two side elastics are kept entirely in the design of a classic slip-on shoe, only that the heel area is exposed. Thus, and through the stylish cutouts in the grey marbled imitation leather, your feet are supplied with air, which is a real boon, especially on hot summer days. As for walking comfort, the shoe is simply unbeatable thanks to the flexible outsole and the memo footbed. It beds your feet softly and intelligently adapts to each of your steps.