Upper material: microfiber/textile combination, GORE-TEX inner lining, washable insole at 30°C, "Perfect-Fit" marking for checking the correct shoe size, HAIX Absorption: cushioning, PU midsole Energy Return absorbs and releases the wearer's energy with every step, HAIX Durable Sole: rubber blend for long durability, PU cushioning wedge, very good insulation against cold, fuel-resistant, non-chalking, HAIX CONNEXIS System: special tape to stimulate the fascia in the foot, insole with nubs that correspond to the structure and function of a fascia ball, very good grip on various terrains (HAIX Anti Slip System), HAIX Smart Lacing, quick-release, shoelace pocket, HAIX FLEXLACE System, GORE stretch lace construction: the shoe adapts individually to the foot. Additional technical features: design: GORE-TEX, waterproof. Available on request in size 3 (35) and up to size 9 (43), as well as half sizes.