There was hope bits of the Xeroshoes could be repurposed.  The plastic shoelace terminators proved merely decoration.  Those silicone coated heel straps proved just as difficult to fit as the stock Xeros.  Their heft makes them want to slide down & they're too wide.  

The 3rd pair of sandals was in men's size & died after 53 miles.  The right paw penetrated through.  Did the 1st complete interval workout in those & it was like cutting butter.   No animal can catch a lion in his huaraches.

Finally tried paracord.  It was supposed to be 100% nylon but it too shredded on the underside.  Only shoelaces have lasted.  Fortunately, a plan to reuse the Xeroshoes soles finally started emerging, involving either glueing fake leather or duct tape on the camera rubber.