Upper Material: Microfiber/textile combination Inner Lining: GORE-TEX® Extended waterproof and highly breathable. Abrasion-resistant lining with optimized climate comfort, especially for flexible alternating inside and outside use. Insole: Comfortable, cushioning, moisture repellent, anti-bacterial, washable at 30 °C. Separate heel shape for good cushioning and foot insertion. “AIRFLOW” channels. Running sole: Made of rubber oil, petrol and heat resistant as well as cold insulating compliant with EN ISO 20347:2012, non-marking and self cleaning Durable Sole: Rubber mixture for long durability. Anti Slip: Excellent grip on a variety of terrains, even in the cold due to specifi c outsole design and use of special rubber. Midsole: Elastic two-layer PU midsole, lightweight, cushioning effect. Stabilization zone for optimal pressure distribution on uneven terrain. HAIX® Climate System: The HAIX® Climate system uses the pumping movement, which permits air circulation with every step – warm air is released through the Micro-Dry lining at the top of the boot leg. 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. HAIX® Vario Wide Fit System: The width of the shoe can be individually adjusted by 3 different insoles. The shoe is supplied with a red insole (medium). A yellow insole (wide) and blue insole (narrow) can be ordered separately. Others: Low weight, pulling strap, closed lacing system and lace pocket, additional tip protection, metal-free, antistatic, sole is very non-skid in wet and cold conditions, durable good cushioning effect