Upper made of waterproof leather that is hydrophobic and breathable, with a thickness of 2.5 - 2.7 mm. Gore-Tex Performance lining, which is waterproof and highly breathable. The abrasion-resistant lining offers maximum climate comfort and is suitable for both indoor and outdoor use, especially in warmer temperatures. The moisture-absorbing synthetic/fleece insole is dimensionally stable, torsion-resistant and reduces selective pressure, for example from stones. The insole is comfortable, cushioning and moisture-wicking, with a heel shape that ensures good cushioning and foot guidance. The rubber/PU sole has a proven road/off-road pattern, is abrasion-resistant and non-slip and offers optimum rolling behaviour thanks to its sporty toe and heel roll. It is oil and fuel resistant, leaves no marks and offers excellent cold and heat insulation. Complies with the EN ISO 20347:2012 standard and the Haix climate system utilises a pumping motion.