Leather Upper. CK Wicking Mesh Lining. Goodyear Welt Construction. C.S.A. Grade 1 Approved, E.S.R. Rated. Green Fit Insole. Oil and Slip Resistant Wolverine® Chevron Rubber Outsole. Polyurethane Midsole. Composite Toe and Layered Protective Fabric Plate. 200 gms. Thinsulate™ Insulation.