Nautilus Women's Sd Mary Jane Leather Mesh and Synthetic Leather Upper Removable Anti-FatiguePolyurethane Insole and EVA Midsole for Maximum Comfort with Rubber Slip- and Oil-Resistant Outsole No Exposed Metal to Meet Scratch to meet requirements 100% Man Made Materials Meets or Exceeds ASTM 2413-11 Impact/Compression and SD Ratings