Upper Material: Microfiber/textile combination.<br>Inner Lining: Breathable inner liner.<br>HAIX Climate System: The HAIX Climate System uses the pumping movement, which permits air circulation with every step – moist air is released and fresh air comes in through the vent holes at the top of the boot.<br>HAIX Ankle Protector System: Safety protection zones to prevent injury to the ankle.<br>Insole: Comfortable, cushioning, moisture repellent. Separate heel shape for good cushioning and foot insertion. "Airflow channels".<br>Running Sole: Made of rubber; oil, gasoline and heat resistant as well as cold insulating, non-marking and self-cleaning.<br>Durable Sole: Rubber mixture for long durability.<br>Anti-Slip: Excellent grip on a variety of terrains, even in the cold due to a specific outsole design and use of a special rubber.<br>Midsole: Elastic two-layer PU midsole, lightweight, cushioning effect. Stabilization zone for optimal pressure distribution on uneven terrain.<br>Dynaframe: HX design element made of tensile and tear resistant PU material. Perfectly covers the midfoot area and transfers traction forces of the lacing elements. The heel clip stabilizes the rear foot.<br>Stabilizer: Asymmetrical TPU for stabilizing the heel.<br>HAIX 2-Zone Lacing: Two zone lacing system enables a separate adjustment of the boot to the foot and leg area.<br>Other: Light weight, pull strap, closed lacing system with lace pocket, toe bumper for additional abrasion protection, metal free, anti-static, sole is very non-skid in wet and cold conditions, durable, good cushioning effect, side zip.<br>Leg Height: 8.3 inches.