Leather upper with CK Wicking Mesh lining. Flexible Cement Construction. C.S.A. Approved, E.S.R. Rated. Security Friendly with a Non-metallic Toe and LENSI PS4-stadt layered protective plate. Removable Airflow ll Dual Density EVA Corka Max Green Fit insole to ciculate air and create a cool foot. EVA midsole. Oil and Slip Resistant W-130 Rubber outsole.