Nautilus 4041 ESD No Exposed Metal Soft Toe Clean Room Athletic Shoe 100% Synthetic Imported Rubber sole Water Resistant Action Leather Upper. Meets or Exceeds ASTM F2413-11 and SD Ratings. Soft Leather Lining to Reduce Particulates for Clean Environments Advanced PU & ESD Foam Insole for Cushioned Comfort Wedged EVA Midsole for Added Support Full-Contact, Slip- and Oil-Resistant Rubber Outsole No Exposed Metal to Meet Scratch Resistant Workplace Requirement