Premium ripstop nylon uppers with TPU (thermo-plastic urethane) toe and heel overlay, Alloy safety toe for lightweight protection, Ghillie lacing system, Cement construction for flexibility and reduced break-in time, Mesh lining with antimicrobial treatment for odor control and comfortable feet, Conductive polyurethane midsole for constant static-dissipative performance, Fiberglass shank for structural support, Anti-fatigue technology is built into the outsole, Single-density open-cell polyurethane footbeds mold to your feet for a custom fit, Non-marking, dual-density polyurethane outsole is oil- and abrasion-resistant and non-marking, and heat resistant up to 248 degrees Fahrenheit,