Nautilus 1317 ESD No Exposed Metal Safety Toe Athletic Shoe Nylon and leather Rubber sole Ergonomically Designed Wide Area Steel Safety Toe Cap. Meets or Exceeds ASTM F2413-11 and SD Ratings. Removable Anti-Fatigue Polyurethane Insole. EVA Midsole for Maximum Comfort. ESD Electric Static Dissipating Footwear meeting or exceeding all ASTM Standards Highly Durable, Slip- and Oil- Resistant Stabilizer Outsole No Exposed Metal to Meet Scratch Resistant Workplace Requirement