Nylon and Synthetic Leather Upper. Ergolite Composite Toe Technology. Removable Anti-Fatigue. Polyurethane Insole. EVA Midsole for Maximum Comfort. Highly Durable, Slip- and Oil- Resistant Stabilizer Outsole. No Exposed Metal to Meet Scratch Resistant Workplace Requirements. 100% Metal Free. Meets or Exceeds ASTM 2413-11 Impact/Compression and SD Ratings.