Nautilus 1630 Full Grain Leather ESD  Safety Toe Slip-On 100% Leather Imported Rubber sole Full-Grain, Water Resistant Leather Upper Ergonomically Designed Wide Area Steel Safety Toe Cap. Meets or Exceeds ASTM F2413-11 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