Cowhide boots lined with breathable polyurethane. Double YKK zip fastening. Removable insole in supple polyurethane with pressure distribution pads and gel insert to cushion shocks in the heel. Preformed arch improving support and comfort. Non-slip outsole in rubber with with comfort zone in supple polyurethane with double-effect "Air System" ventilation: - Air circulation in the sole and evacuation through the outlet valve on the heel. - Shock-absorbent air cushion effect improving comfort when walking.