Description 150mm derby style lace-up ankle boot with padded collar and tongue. Upper Materials Cowhide water-resistant leather and stitched in Nylon thread. Non-Corrosive Lacing. Toe Cap 200J Safety Steel. Lining Materials This boot is lined with Baltico , which is a soft, non-abrasive, hydrophobic material that wicks perspiration away from the foot, enabling the skin to remain cool and dry. Full Innersole A full length footbed that is inserted into the footwear to offer additional support and comfort. This footbed is made from soft polyurethane that will retain its shape and thickness throughout the life of the boot.Insole Heavy-duty, flexible anti-bacterial non-woven insole. Midsole Directly moulded Polyurethane midsole for greater shock absorption. Outsole Oil and acid resistant nitrile rubber outsole. Heat resistant to 300oC. Trisole Comfort Technology Soling System The Steel Blue soling system is a patented three density soling system that offers a high level of comfort, shock absorbency and energy return. The system uses PORON as energy absorbing pads under the pressure points of the foot to give the wearer superior comfort and offers similar shock absorbency and comfort to sports footwear.