From Twisted X®, the Men's Driving Moc Slip On Sneakers feature: Leather upper featuring woven leather on vamp Oil and slip resistant CellStretch® technology utilizes cells in the forefoot and heel to provide superior cushioning and comfort Elastic gore panels allow for an easy entrance and exit Nylon/glass fiber shank Mesh lining Footbeds also feature ecoTWEED™ lining Blend85™ footbed  Compression-molded EVA midsole integrated with molasses.  Rubber outsole integrated with blended rice husk.  Imported.