LIGHT! STRONG! COMFORTABLE! WARM! Versatile safety wellington featuring O4 safety components.The uppers are expertly designed to enhance water run-off and internal thermal insulation protects against temperatures as low as -20 degrees c.Polyurethane textile lining. Thermal insulation up to -20C. Removable insole for extra comfort. Sole resistant to oils, fats, acids and organic solvents. Slip resistant and anti-static sole.