1) Upper: Leather 2) Chinese Cambrelle lining 3) Steel toe cap 4) Steel midsole 5) PU sole The real professional industry safety shoes with all the features, as following, 1>slip-proof 3>oil endurance 4>crush-proof 5>pierce-proof 6>static-proof 7>electric-insulation 8>alkaline endurance 9>acid endurance