Upper Material: Nubuk leather, hydrophobic, breathable (4.0 mg/cm²/h), 2.6 – 2.8 mm thick Inner Lining: GORE-TEX® Performance- 4-layer GORE-TEX® laminate, waterproof and breathable. Highly abrasion-resistant lining with fleece midlayer. Optimized climate comfort for all year seasons and excessive use. Increased chemical protection. Plastic/fleece insole: Moisture absorbent, anti-torsion design for outstanding stability, reducing point pressure (from stones, etc.) Foot bed: Comfortable, impact-absorbing, moisturewicking, antibacterial. Separate heel cup ensures optimized cushioning and foot guidance. Sole: Rubber/PU walking sole with proven street/terrain tread, wear resistant and non-slip traction