The upper is made of waterproof leather that is hydrophobic and breathable and has a thickness of 2.0 to 2.2 mm. The inner lining is made of GORE-TEX® Performance, which is waterproof and breathable. The abrasion-resistant lining material has a fleece interlayer and offers optimum climate comfort for all seasons under the most demanding conditions. The insole is made of moisture-absorbing synthetic/fleece material and is dimensionally stable, torsion-resistant and reduces punctual pressure (e.g. from stones or sharp objects). The anatomically shaped insole absorbs moisture very well and dries quickly, is replaceable and washable. The sole is made of rubber/PU and has a road/off-road profile, is abrasion-resistant and non-slip. The HAIX® Climate System uses the pumping motion that occurs when walking to transport moisture to the ventilation openings on the shaft and tongue. The cushioning with cushioning wedge, which is incorporated into the sole, provides HAIX® Absorption. The HAIX® CO system provides pressure relief, cushioning, correction of foot position, body alignment and muscle balance in accordance with DGUV Rule 112-191 (BGR 191). Thanks to the HAIX® Vario Wide Fit System, the width of the shoe can be individually adjusted. The shoe has additional toe protection and a certified winter insole (item no. 901458) is available separately.