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 Hydrolysis resistant Energy absorbing heel