Oil resistant 4-Density sole: rubber inserts bonded to a PU midsole with a TPU lock sole. Composite protective toe. Non-metallic puncture resistant plate. Dielectric (ESR) protection. Wear resistant TPU Pareshok bumper toe. 2.0 mm full grain leather. Thinsulate thermal insulation. Stitching threads tested for strength. Low-density soft foam footbed for added comfort. Taibrelle lining. Specific use - winter.