Almost unchanged in 17 years of production. The KlimaAIR® technology ensures the air circulation in the shoes , thus optimizing the wearing comfort . The stainless steel hooks and 3 -riveted out seam guarantee the durability of the shoes . The new 5mm thick Russian leather and cut protection class 1 protect the foot from external influences . 17 years of quality and maximum comfort . FEATURES Very sharp fittings made ​​of hardened steel Ideal for steep , rough terrain Extremely abrasion resistant New with 5mm Russian Leather Real double stitched Only one seam , stitched 3x and riveted 3x KlimaAIR® Technology Stainless copper chrome eyelets 6 – layer sole construction Cut Protection Class 1 Extremely robust MATERIAL Upper: Russia leather Lining: 100% Polyester Sole: Vibram