Noratherm S5 Full Safety Polyurethane Thermo BootPolyurethane boots, that contains millions of tiny air bubbles, making the boots lightweight and giving excellent thermal insulation. Features: Self Cleaning Outsole Slip Resistance SRC UPPER: Anatomic Polyurethane upper OUTSOLE: Easy cleaning Polyurethane outsole, dust proof LINING: Anti bacterial sock FOOTBED: Removable insole made with an antistatic foam with extra grip printing. Good sweat managing for extra comfort SPECIAL: Insulation 50C 58F