There are certain features we love about sneakers (like the all-around comfort) and others we can't find in anything but a sandal (like the slide-in-and-go design). So we decided to combine both, and just like that, this Crest Vibe mule was born. The classic Crest Vibe in a mule style Lightweight and breathable canvas uppers in classic core colors with genuine rawhide laces and barrel ties Memory Foam cushioned insole for all-day comfort, and a flexible non-marking rubber outsole for traction I think I wore them once for about 30 minutes.