Soft, full-grain leather or oiled nubuck. Micro fibre heel grip provides no-slip comfort. Interchangeable leather insole with ECCO Comfort Fibre System foam or insole with moisture-absorbent, specially developed material with felt that allows your feet to breathe or leather lining. Anatomically shaped, hardwearing, light and flexible Freon-free outsole made of either polyurethane (PU) or thermoplastic polyurethane (TPU) with shock absorption (shock point).