Upper: PVC, Recycled Nylon. Lining: Fleece, Polyester, Recycled. Insole: Ortholite, Polyester, PU (Polyurethane), Recycled. Outsole: Rubber. Cold Resistance (Celsius): -20°C. Toggle Adjuster. Low Heel. Cut: Mid Calf. Design: Contrast, Logo. Toe Style: Round. Fastening: Slip-on.