Karv T Shirt Homme grandeur s and they are characterized by Autre Doublure avec traitement and they are characterized by a bouncy SpEVA ™ midsole to give an energetic spring to your step fitted with a 16 pivoting and folding stainless steel spike system with drainage channels Spike system mounted on an exclusive flexible polyurethane frame durable in extreme temperatures Midsole ensuring impact and compression resistance (UNI EN 12568 certified) (as required by safety shoe regulations) Addition of an additional insole with insulating and reflective silver film Removable insole allowing an orthopedic expert to replace it with a plantar orthosis