Suede/Mesh upper with CK Wicking Mesh lining. Strong Cement Construction. Spenco collar. C.S.A. Approved, E.S.R. Rated. Security Friendly with a Non-metallic Toe and LENSI PS4 layered protective toe plate. Removable Airflow ll Dual Density EVA Corka Max Green Fit insole to circulate air and create a cool foot. EVA midsole. Oil and Slip resistant Rubber outsole.