Slip On These Walkers and Go Anywhere—They're Washable! Go ahead and take that dirty path…Propet Washable Slides have a slip resistant rubber outsole for the extra traction you need. And when they start to look dingy, just toss them into the washing machine! The mesh and full-grain leather upper has a nylex lining so feet stay cool, dry, and healthy. A cushioned EVA insole is removable and the cushioned EVA outsole is lightweight yet supportive. Imported.