Technical detail: DETAILS: joint in the ankle area. Cowhide upper. Heat shield and rubber inserts Abrasion-resistant calf area. Microfiber bellows in the joints. Hypoallergenic with extra padding to protect the ankle and soft gaiter. TPU at the top with velcro closure. VIBRAM® outsole wear. Closing by new aluminum hooks with quick release system and new straps. Steel tip. CERTIFICATION EN13634: 2010 LIV.2.